859972402 has 8 divisors (see below), whose sum is σ = 1295592300. Its totient is φ = 428108304.

The previous prime is 859972397. The next prime is 859972493. The reversal of 859972402 is 204279958.

It can be written as a sum of positive squares in 2 ways, for example, as 690165441 + 169806961 = 26271^2 + 13031^2 .

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

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, 938377 + ... + 939292.

Almost surely, 2^859972402 is an apocalyptic number.

859972402 is a deficient number, since it is larger than the sum of its proper divisors (435619898).

859972402 is a wasteful number, since it uses less digits than its factorization.

859972402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1877900.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 859972402 is about 29325.2860514608. The cubic root of 859972402 is about 950.9583687823.

The spelling of 859972402 in words is "eight hundred fifty-nine million, nine hundred seventy-two thousand, four hundred two".