70989702 has 16 divisors (see below), whose sum is σ = 162262272. Its totient is φ = 20282760.

The previous prime is 70989697. The next prime is 70989703. The reversal of 70989702 is 20798907.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 1690231 = 70989702 / (7 + 0 + 9 + 8 + 9 + 7 + 0 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70989703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 845074 + ... + 845157.

It is an arithmetic number, because the mean of its divisors is an integer number (10141392).

Almost surely, 2^70989702 is an apocalyptic number.

70989702 is an abundant number, since it is smaller than the sum of its proper divisors (91272570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70989702 is a wasteful number, since it uses less digits than its factorization.

70989702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1690243.

The product of its (nonzero) digits is 63504, while the sum is 42.

The square root of 70989702 is about 8425.5386771411. The cubic root of 70989702 is about 414.0617541897.

The spelling of 70989702 in words is "seventy million, nine hundred eighty-nine thousand, seven hundred two".