45739987 has 2 divisors, whose sum is σ = 45739988. Its totient is φ = 45739986.

The previous prime is 45739963. The next prime is 45740017. The reversal of 45739987 is 78993754.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45739987 is a prime.

It is not a weakly prime, because it can be changed into another prime (45739907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22869993 + 22869994.

It is an arithmetic number, because the mean of its divisors is an integer number (22869994).

Almost surely, 2^45739987 is an apocalyptic number.

45739987 is a deficient number, since it is larger than the sum of its proper divisors (1).

45739987 is an equidigital number, since it uses as much as digits as its factorization.

45739987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1905120, while the sum is 52.

The square root of 45739987 is about 6763.1344064716. The cubic root of 45739987 is about 357.6284103560.

The spelling of 45739987 in words is "forty-five million, seven hundred thirty-nine thousand, nine hundred eighty-seven".