70999028 has 12 divisors (see below), whose sum is σ = 124394592. Its totient is φ = 35457720.

The previous prime is 70998971. The next prime is 70999037. The reversal of 70999028 is 82099907.

It is a self number, because there is not a number n which added to its sum of digits gives 70999028.

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, 6458 + ... + 13553.

It is an arithmetic number, because the mean of its divisors is an integer number (10366216).

Almost surely, 2^70999028 is an apocalyptic number.

It is an amenable number.

70999028 is a deficient number, since it is larger than the sum of its proper divisors (53395564).

70999028 is a wasteful number, since it uses less digits than its factorization.

70999028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20902 (or 20900 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 44.

The square root of 70999028 is about 8426.0920953904. The cubic root of 70999028 is about 414.0798853211.

The spelling of 70999028 in words is "seventy million, nine hundred ninety-nine thousand, twenty-eight".