70977090 has 32 divisors (see below), whose sum is σ = 174309696. Its totient is φ = 18486720.

The previous prime is 70977089. The next prime is 70977107. The reversal of 70977090 is 9077907.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26221 + ... + 28800.

It is an arithmetic number, because the mean of its divisors is an integer number (5447178).

Almost surely, 2^70977090 is an apocalyptic number.

70977090 is an abundant number, since it is smaller than the sum of its proper divisors (103332606).

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

70977090 is a wasteful number, since it uses less digits than its factorization.

70977090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55074.

The product of its (nonzero) digits is 27783, while the sum is 39.

The square root of 70977090 is about 8424.7902051030. The cubic root of 70977090 is about 414.0372320596.

The spelling of 70977090 in words is "seventy million, nine hundred seventy-seven thousand, ninety".