45979247 has 2 divisors, whose sum is σ = 45979248. Its totient is φ = 45979246.

The previous prime is 45979243. The next prime is 45979267. The reversal of 45979247 is 74297954.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45979247 - 2² = 45979243 is a prime.

It is a super-2 number, since 2×45979247² = 4228182309374018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45979243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22989623 + 22989624.

It is an arithmetic number, because the mean of its divisors is an integer number (22989624).

Almost surely, 2^45979247 is an apocalyptic number.

45979247 is a deficient number, since it is larger than the sum of its proper divisors (1).

45979247 is an equidigital number, since it uses as much as digits as its factorization.

45979247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 635040, while the sum is 47.

The square root of 45979247 is about 6780.7998790703. The cubic root of 45979247 is about 358.2508956685.

The spelling of 45979247 in words is "forty-five million, nine hundred seventy-nine thousand, two hundred forty-seven".