45388477 has 2 divisors, whose sum is σ = 45388478. Its totient is φ = 45388476.

The previous prime is 45388471. The next prime is 45388481. The reversal of 45388477 is 77488354.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23242041 + 22146436 = 4821^2 + 4706^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45388477 is a prime.

It is a super-2 number, since 2×45388477² = 4120227688759058, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45388471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22694238 + 22694239.

It is an arithmetic number, because the mean of its divisors is an integer number (22694239).

Almost surely, 2^45388477 is an apocalyptic number.

It is an amenable number.

45388477 is a deficient number, since it is larger than the sum of its proper divisors (1).

45388477 is an equidigital number, since it uses as much as digits as its factorization.

45388477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 752640, while the sum is 46.

The square root of 45388477 is about 6737.0970751504. The cubic root of 45388477 is about 356.7099334163.

The spelling of 45388477 in words is "forty-five million, three hundred eighty-eight thousand, four hundred seventy-seven".