70965990 has 64 divisors (see below), whose sum is σ = 200387520. Its totient is φ = 17809920.

The previous prime is 70965977. The next prime is 70966003. The reversal of 70965990 is 9956907.

It is an interprime number because it is at equal distance from previous prime (70965977) and next prime (70966003).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3141 + ... + 12320.

It is an arithmetic number, because the mean of its divisors is an integer number (3131055).

Almost surely, 2^70965990 is an apocalyptic number.

70965990 is an abundant number, since it is smaller than the sum of its proper divisors (129421530).

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

70965990 is a wasteful number, since it uses less digits than its factorization.

70965990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15494 (or 15488 counting only the distinct ones).

The product of its (nonzero) digits is 153090, while the sum is 45.

The square root of 70965990 is about 8424.1314092315. The cubic root of 70965990 is about 414.0156473817.

The spelling of 70965990 in words is "seventy million, nine hundred sixty-five thousand, nine hundred ninety".