70985398 has 16 divisors (see below), whose sum is σ = 116317440. Its totient is φ = 32221800.

The previous prime is 70985393. The next prime is 70985399. The reversal of 70985398 is 89358907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70985393) 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, 18463 + ... + 21973.

It is an arithmetic number, because the mean of its divisors is an integer number (7269840).

Almost surely, 2^70985398 is an apocalyptic number.

70985398 is a deficient number, since it is larger than the sum of its proper divisors (45332042).

70985398 is a wasteful number, since it uses less digits than its factorization.

70985398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4443.

The product of its (nonzero) digits is 544320, while the sum is 49.

The square root of 70985398 is about 8425.2832593332. The cubic root of 70985398 is about 414.0533860379.

The spelling of 70985398 in words is "seventy million, nine hundred eighty-five thousand, three hundred ninety-eight".