992871398 has 16 divisors (see below), whose sum is σ = 1508489136. Its totient is φ = 490051680.

The previous prime is 992871377. The next prime is 992871409. The reversal of 992871398 is 893178299.

It is a super-2 number, since 2×992871398² = 1971587225932948808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 367340 + ... + 370032.

It is an arithmetic number, because the mean of its divisors is an integer number (94280571).

Almost surely, 2^992871398 is an apocalyptic number.

992871398 is a deficient number, since it is larger than the sum of its proper divisors (515617738).

992871398 is a wasteful number, since it uses less digits than its factorization.

992871398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4999.

The product of its digits is 1959552, while the sum is 56.

The square root of 992871398 is about 31509.8619165492. The cubic root of 992871398 is about 997.6181305355.

The spelling of 992871398 in words is "nine hundred ninety-two million, eight hundred seventy-one thousand, three hundred ninety-eight".