70497855 has 24 divisors (see below), whose sum is σ = 125041488. Its totient is φ = 36723456.

The previous prime is 70497841. The next prime is 70497857. The reversal of 70497855 is 55879407.

It is not a de Polignac number, because 70497855 - 2⁷ = 70497727 is a prime.

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 70497855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70497857) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16282 + ... + 20151.

It is an arithmetic number, because the mean of its divisors is an integer number (5210062).

Almost surely, 2^70497855 is an apocalyptic number.

70497855 is a deficient number, since it is larger than the sum of its proper divisors (54543633).

70497855 is a wasteful number, since it uses less digits than its factorization.

70497855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36487 (or 36484 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The square root of 70497855 is about 8396.3000780106. The cubic root of 70497855 is about 413.1032715694.

The spelling of 70497855 in words is "seventy million, four hundred ninety-seven thousand, eight hundred fifty-five".