37872393 has 12 divisors (see below), whose sum is σ = 54680400. Its totient is φ = 23305776.

The previous prime is 37872391. The next prime is 37872407. The reversal of 37872393 is 39327873.

It is not a de Polignac number, because 37872393 - 2¹ = 37872391 is a prime.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (37872391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36843 + ... + 37856.

It is an arithmetic number, because the mean of its divisors is an integer number (4556700).

Almost surely, 2^37872393 is an apocalyptic number.

It is an amenable number.

37872393 is a deficient number, since it is larger than the sum of its proper divisors (16808007).

37872393 is a wasteful number, since it uses less digits than its factorization.

37872393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74728 (or 74715 counting only the distinct ones).

The product of its digits is 190512, while the sum is 42.

The square root of 37872393 is about 6154.0550046291. The cubic root of 37872393 is about 335.8207926870.

It can be divided in two parts, 378 and 72393, that added together give a triangular number (72771 = T₃₈₁).

The spelling of 37872393 in words is "thirty-seven million, eight hundred seventy-two thousand, three hundred ninety-three".