70737975 has 96 divisors (see below), whose sum is σ = 162132480. Its totient is φ = 29376000.

The previous prime is 70737973. The next prime is 70737983. The reversal of 70737975 is 57973707.

It is not a de Polignac number, because 70737975 - 2¹ = 70737973 is a prime.

It is a super-2 number, since 2×70737975² = 10007722214201250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 70737975.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70737971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 51295 + ... + 52655.

It is an arithmetic number, because the mean of its divisors is an integer number (1688880).

Almost surely, 2^70737975 is an apocalyptic number.

70737975 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

70737975 is an abundant number, since it is smaller than the sum of its proper divisors (91394505).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70737975 is a wasteful number, since it uses less digits than its factorization.

70737975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398 (or 1387 counting only the distinct ones).

The product of its (nonzero) digits is 324135, while the sum is 45.

The square root of 70737975 is about 8410.5870782009. The cubic root of 70737975 is about 413.5717583979.

The spelling of 70737975 in words is "seventy million, seven hundred thirty-seven thousand, nine hundred seventy-five".