70806975 has 24 divisors (see below), whose sum is σ = 117611520. Its totient is φ = 37588320.

The previous prime is 70806973. The next prime is 70806979. The reversal of 70806975 is 57960807.

It is not a de Polignac number, because 70806975 - 2¹ = 70806973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70806973) 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, 14946 + ... + 19104.

It is an arithmetic number, because the mean of its divisors is an integer number (4900480).

Almost surely, 2^70806975 is an apocalyptic number.

70806975 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

70806975 is a deficient number, since it is larger than the sum of its proper divisors (46804545).

70806975 is a wasteful number, since it uses less digits than its factorization.

70806975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4399 (or 4394 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 42.

The square root of 70806975 is about 8414.6880512589. The cubic root of 70806975 is about 413.7061849107.

The spelling of 70806975 in words is "seventy million, eight hundred six thousand, nine hundred seventy-five".