37949009 has 4 divisors (see below), whose sum is σ = 43370304. Its totient is φ = 32527716.

The previous prime is 37948987. The next prime is 37949027. The reversal of 37949009 is 90094973.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90094973 = 787 ⋅114479.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-37949009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (37949039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2710637 + ... + 2710650.

It is an arithmetic number, because the mean of its divisors is an integer number (10842576).

Almost surely, 2^37949009 is an apocalyptic number.

It is an amenable number.

37949009 is a deficient number, since it is larger than the sum of its proper divisors (5421295).

37949009 is an equidigital number, since it uses as much as digits as its factorization.

37949009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5421294.

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 37949009 is about 6160.2766983310. The cubic root of 37949009 is about 336.0470957464.

The spelling of 37949009 in words is "thirty-seven million, nine hundred forty-nine thousand, nine".