192897928 has 8 divisors (see below), whose sum is σ = 361683630. Its totient is φ = 96448960.

The previous prime is 192897919. The next prime is 192897953. The reversal of 192897928 is 829798291.

It can be written as a sum of positive squares in only one way, i.e., 164403684 + 28494244 = 12822^2 + 5338^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×192897928² = 74419221253386368, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12056113 + ... + 12056128.

Almost surely, 2^192897928 is an apocalyptic number.

It is an amenable number.

192897928 is a deficient number, since it is larger than the sum of its proper divisors (168785702).

192897928 is a wasteful number, since it uses less digits than its factorization.

192897928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24112247 (or 24112243 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 55.

The square root of 192897928 is about 13888.7698519343. The cubic root of 192897928 is about 577.7977605296.

It can be divided in two parts, 1928 and 97928, that added together give a square (99856 = 316²).

The spelling of 192897928 in words is "one hundred ninety-two million, eight hundred ninety-seven thousand, nine hundred twenty-eight".