45687757 has 2 divisors, whose sum is σ = 45687758. Its totient is φ = 45687756.

The previous prime is 45687751. The next prime is 45687793. The reversal of 45687757 is 75778654.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45077796 + 609961 = 6714^2 + 781^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45687757 is a prime.

It is a super-2 number, since 2×45687757² = 4174742279382098, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45687757.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45687751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22843878 + 22843879.

It is an arithmetic number, because the mean of its divisors is an integer number (22843879).

Almost surely, 2^45687757 is an apocalyptic number.

It is an amenable number.

45687757 is a deficient number, since it is larger than the sum of its proper divisors (1).

45687757 is an equidigital number, since it uses as much as digits as its factorization.

45687757 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1646400, while the sum is 49.

The square root of 45687757 is about 6759.2719282479. The cubic root of 45687757 is about 357.4922344964.

The spelling of 45687757 in words is "forty-five million, six hundred eighty-seven thousand, seven hundred fifty-seven".