37798649 has 6 divisors (see below), whose sum is σ = 43969914. Its totient is φ = 32398800.

The previous prime is 37798601. The next prime is 37798721. The reversal of 37798649 is 94689773.

It can be written as a sum of positive squares in only one way, i.e., 37515625 + 283024 = 6125^2 + 532^2 .

It is a de Polignac number, because none of the positive numbers 2^k-37798649 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 37798649.

It is not an unprimeable number, because it can be changed into a prime (37798249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 385652 + ... + 385749.

It is an arithmetic number, because the mean of its divisors is an integer number (7328319).

Almost surely, 2^37798649 is an apocalyptic number.

It is an amenable number.

37798649 is a deficient number, since it is larger than the sum of its proper divisors (6171265).

37798649 is an equidigital number, since it uses as much as digits as its factorization.

37798649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771415 (or 771408 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 53.

The square root of 37798649 is about 6148.0605885108. The cubic root of 37798649 is about 335.6026842996.

The spelling of 37798649 in words is "thirty-seven million, seven hundred ninety-eight thousand, six hundred forty-nine".