65723697 has 32 divisors (see below), whose sum is σ = 107439360. Its totient is φ = 39450240.

The previous prime is 65723663. The next prime is 65723701. The reversal of 65723697 is 79632756.

It is not a de Polignac number, because 65723697 - 2⁷ = 65723569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65723197) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12108 + ... + 16674.

It is an arithmetic number, because the mean of its divisors is an integer number (3357480).

Almost surely, 2^65723697 is an apocalyptic number.

It is an amenable number.

65723697 is a deficient number, since it is larger than the sum of its proper divisors (41715663).

65723697 is a wasteful number, since it uses less digits than its factorization.

65723697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4630 (or 4624 counting only the distinct ones).

The product of its digits is 476280, while the sum is 45.

The square root of 65723697 is about 8107.0152954093. The cubic root of 65723697 is about 403.5592704630.

The spelling of 65723697 in words is "sixty-five million, seven hundred twenty-three thousand, six hundred ninety-seven".