70031998 has 8 divisors (see below), whose sum is σ = 105439320. Its totient is φ = 34885560.

The previous prime is 70031917. The next prime is 70032031. The reversal of 70031998 is 89913007.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 64548 + ... + 65623.

It is an arithmetic number, because the mean of its divisors is an integer number (13179915).

Almost surely, 2^70031998 is an apocalyptic number.

70031998 is a deficient number, since it is larger than the sum of its proper divisors (35407322).

70031998 is a wasteful number, since it uses less digits than its factorization.

70031998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130442.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 70031998 is about 8368.5122931140. The cubic root of 70031998 is about 412.1913170277.

The spelling of 70031998 in words is "seventy million, thirty-one thousand, nine hundred ninety-eight".