192987664 has 45 divisors (see below), whose sum is σ = 393483279. Its totient is φ = 91687200.

The previous prime is 192987659. The next prime is 192987703. The reversal of 192987664 is 466789291.

It is a happy number.

The square root of 192987664 is 13892.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1277989 + ... + 1278139.

Almost surely, 2^192987664 is an apocalyptic number.

192987664 is the 13892-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 192987664

192987664 is an abundant number, since it is smaller than the sum of its proper divisors (200495615).

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

192987664 is an equidigital number, since it uses as much as digits as its factorization.

192987664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356 (or 176 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 52.

The cubic root of 192987664 is about 577.8873436965.

It can be divided in two parts, 19298 and 7664, that added together give a palindrome (26962).

The spelling of 192987664 in words is "one hundred ninety-two million, nine hundred eighty-seven thousand, six hundred sixty-four".