70987732 has 6 divisors (see below), whose sum is σ = 124228538. Its totient is φ = 35493864.

The previous prime is 70987727. The next prime is 70987739. The reversal of 70987732 is 23778907.

It can be written as a sum of positive squares in only one way, i.e., 46840336 + 24147396 = 6844^2 + 4914^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70987739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8873463 + ... + 8873470.

Almost surely, 2^70987732 is an apocalyptic number.

It is an amenable number.

70987732 is a deficient number, since it is larger than the sum of its proper divisors (53240806).

70987732 is a wasteful number, since it uses less digits than its factorization.

70987732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17746937 (or 17746935 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 43.

The square root of 70987732 is about 8425.4217698582. The cubic root of 70987732 is about 414.0579240135.

The spelling of 70987732 in words is "seventy million, nine hundred eighty-seven thousand, seven hundred thirty-two".