45648997 has 6 divisors (see below), whose sum is σ = 47720582. Its totient is φ = 43663752.

The previous prime is 45648989. The next prime is 45649003. The reversal of 45648997 is 79984654.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 24910081 + 20738916 = 4991^2 + 4554^2 .

It is not a de Polignac number, because 45648997 - 2³ = 45648989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45648907) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42618 + ... + 43675.

Almost surely, 2^45648997 is an apocalyptic number.

It is an amenable number.

45648997 is a deficient number, since it is larger than the sum of its proper divisors (2071585).

45648997 is an equidigital number, since it uses as much as digits as its factorization.

45648997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86339 (or 86316 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 52.

The square root of 45648997 is about 6756.4041471777. The cubic root of 45648997 is about 357.3911109847.

The spelling of 45648997 in words is "forty-five million, six hundred forty-eight thousand, nine hundred ninety-seven".