70630988 has 12 divisors (see below), whose sum is σ = 130875192. Its totient is φ = 33238080.

The previous prime is 70630957. The next prime is 70630991. The reversal of 70630988 is 88903607.

It is a super-2 number, since 2×70630988² = 9977472931712288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 519278 + ... + 519413.

It is an arithmetic number, because the mean of its divisors is an integer number (10906266).

Almost surely, 2^70630988 is an apocalyptic number.

It is an amenable number.

70630988 is a deficient number, since it is larger than the sum of its proper divisors (60244204).

70630988 is a wasteful number, since it uses less digits than its factorization.

70630988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038712 (or 1038710 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 70630988 is about 8404.2244139480. The cubic root of 70630988 is about 413.3631522596.

The spelling of 70630988 in words is "seventy million, six hundred thirty thousand, nine hundred eighty-eight".