870312398 has 4 divisors (see below), whose sum is σ = 1305468600. Its totient is φ = 435156198.

The previous prime is 870312397. The next prime is 870312407. The reversal of 870312398 is 893213078.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×870312398² = 1514887340225020808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870312397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217578098 + ... + 217578101.

It is an arithmetic number, because the mean of its divisors is an integer number (326367150).

Almost surely, 2^870312398 is an apocalyptic number.

870312398 is a deficient number, since it is larger than the sum of its proper divisors (435156202).

870312398 is a wasteful number, since it uses less digits than its factorization.

870312398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435156201.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 870312398 is about 29501.0575742633. The cubic root of 870312398 is about 954.7545207532.

The spelling of 870312398 in words is "eight hundred seventy million, three hundred twelve thousand, three hundred ninety-eight".