45427939 has 2 divisors, whose sum is σ = 45427940. Its totient is φ = 45427938.

The previous prime is 45427933. The next prime is 45427957. The reversal of 45427939 is 93972454.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45427939 - 2³ = 45427931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45427895 and 45427904.

It is not a weakly prime, because it can be changed into another prime (45427931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22713969 + 22713970.

It is an arithmetic number, because the mean of its divisors is an integer number (22713970).

Almost surely, 2^45427939 is an apocalyptic number.

45427939 is a deficient number, since it is larger than the sum of its proper divisors (1).

45427939 is an equidigital number, since it uses as much as digits as its factorization.

45427939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 43.

The square root of 45427939 is about 6740.0251483210. The cubic root of 45427939 is about 356.8132813055.

The spelling of 45427939 in words is "forty-five million, four hundred twenty-seven thousand, nine hundred thirty-nine".