37749379 has 2 divisors, whose sum is σ = 37749380. Its totient is φ = 37749378.

The previous prime is 37749343. The next prime is 37749389. The reversal of 37749379 is 97394773.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-37749379 is a prime.

It is a super-2 number, since 2×37749379² = 2850031229771282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (37749389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18874689 + 18874690.

It is an arithmetic number, because the mean of its divisors is an integer number (18874690).

Almost surely, 2^37749379 is an apocalyptic number.

37749379 is a deficient number, since it is larger than the sum of its proper divisors (1).

37749379 is an equidigital number, since it uses as much as digits as its factorization.

37749379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1000188, while the sum is 49.

The square root of 37749379 is about 6144.0523272511. The cubic root of 37749379 is about 335.4568031254.

The spelling of 37749379 in words is "thirty-seven million, seven hundred forty-nine thousand, three hundred seventy-nine".