65193992 has 32 divisors (see below), whose sum is σ = 126912000. Its totient is φ = 31363200.

The previous prime is 65193941. The next prime is 65194007. The reversal of 65193992 is 29939156.

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, 48692 + ... + 50012.

It is an arithmetic number, because the mean of its divisors is an integer number (3966000).

Almost surely, 2^65193992 is an apocalyptic number.

65193992 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

65193992 is a deficient number, since it is larger than the sum of its proper divisors (61718008).

65193992 is a wasteful number, since it uses less digits than its factorization.

65193992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1557 (or 1553 counting only the distinct ones).

The product of its digits is 131220, while the sum is 44.

The square root of 65193992 is about 8074.2796582729. The cubic root of 65193992 is about 402.4721727608.

The spelling of 65193992 in words is "sixty-five million, one hundred ninety-three thousand, nine hundred ninety-two".