70032987 has 12 divisors (see below), whose sum is σ = 101398024. Its totient is φ = 46578240.

The previous prime is 70032983. The next prime is 70033001. The reversal of 70032987 is 78923007.

It is not a de Polignac number, because 70032987 - 2² = 70032983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70032983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5089 + ... + 12882.

Almost surely, 2^70032987 is an apocalyptic number.

70032987 is a deficient number, since it is larger than the sum of its proper divisors (31365037).

70032987 is a wasteful number, since it uses less digits than its factorization.

70032987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18410 (or 18407 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 70032987 is about 8368.5713834561. The cubic root of 70032987 is about 412.1932573565.

The spelling of 70032987 in words is "seventy million, thirty-two thousand, nine hundred eighty-seven".