45665397 has 24 divisors (see below), whose sum is σ = 68772480. Its totient is φ = 29947320.

The previous prime is 45665381. The next prime is 45665407. The reversal of 45665397 is 79356654.

45665397 is nontrivially palindromic in base 2.

It is not a de Polignac number, because 45665397 - 2⁴ = 45665381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45665317) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 168372 + ... + 168642.

It is an arithmetic number, because the mean of its divisors is an integer number (2865520).

Almost surely, 2^45665397 is an apocalyptic number.

It is an amenable number.

45665397 is a deficient number, since it is larger than the sum of its proper divisors (23107083).

45665397 is an equidigital number, since it uses as much as digits as its factorization.

45665397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438 (or 353 counting only the distinct ones).

The product of its digits is 680400, while the sum is 45.

The square root of 45665397 is about 6757.6177015277. The cubic root of 45665397 is about 357.4339050060.

The spelling of 45665397 in words is "forty-five million, six hundred sixty-five thousand, three hundred ninety-seven".