45877997 has 6 divisors (see below), whose sum is σ = 50428014. Its totient is φ = 41707160.

The previous prime is 45877963. The next prime is 45878003. The reversal of 45877997 is 79977854.

It can be written as a sum of positive squares in only one way, i.e., 43705321 + 2172676 = 6611^2 + 1474^2 .

It is not a de Polignac number, because 45877997 - 2¹⁸ = 45615853 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 (45877927) 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, 189458 + ... + 189699.

It is an arithmetic number, because the mean of its divisors is an integer number (8404669).

Almost surely, 2^45877997 is an apocalyptic number.

It is an amenable number.

45877997 is a deficient number, since it is larger than the sum of its proper divisors (4550017).

45877997 is a wasteful number, since it uses less digits than its factorization.

45877997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379179 (or 379168 counting only the distinct ones).

The product of its digits is 4445280, while the sum is 56.

The square root of 45877997 is about 6773.3298310358. The cubic root of 45877997 is about 357.9877366460.

The spelling of 45877997 in words is "forty-five million, eight hundred seventy-seven thousand, nine hundred ninety-seven".