70956887 has 16 divisors (see below), whose sum is σ = 76876800. Its totient is φ = 65279520.

The previous prime is 70956857. The next prime is 70956911. The reversal of 70956887 is 78865907.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70956887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70956857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161414 + ... + 161852.

It is an arithmetic number, because the mean of its divisors is an integer number (4804800).

Almost surely, 2^70956887 is an apocalyptic number.

70956887 is the 6878-th pentagonal number.

70956887 is a deficient number, since it is larger than the sum of its proper divisors (5919913).

70956887 is a wasteful number, since it uses less digits than its factorization.

70956887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686.

The product of its (nonzero) digits is 846720, while the sum is 50.

The square root of 70956887 is about 8423.5910988129. The cubic root of 70956887 is about 413.9979443214.

The spelling of 70956887 in words is "seventy million, nine hundred fifty-six thousand, eight hundred eighty-seven".