37906749 has 6 divisors (see below), whose sum is σ = 54754206. Its totient is φ = 25271160.

The previous prime is 37906747. The next prime is 37906763. The reversal of 37906749 is 94760973.

It can be written as a sum of positive squares in only one way, i.e., 20115225 + 17791524 = 4485^2 + 4218^2 .

It is not a de Polignac number, because 37906749 - 2¹ = 37906747 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37906747) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2105922 + ... + 2105939.

It is an arithmetic number, because the mean of its divisors is an integer number (9125701).

Almost surely, 2^37906749 is an apocalyptic number.

It is an amenable number.

37906749 is a deficient number, since it is larger than the sum of its proper divisors (16847457).

37906749 is a wasteful number, since it uses less digits than its factorization.

37906749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4211867 (or 4211864 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 45.

The square root of 37906749 is about 6156.8457021433. The cubic root of 37906749 is about 335.9223087805.

The spelling of 37906749 in words is "thirty-seven million, nine hundred six thousand, seven hundred forty-nine".