37648066 has 4 divisors (see below), whose sum is σ = 56472102. Its totient is φ = 18824032.

The previous prime is 37648049. The next prime is 37648067. The reversal of 37648066 is 66084673.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66084673 = 317 ⋅208469.

It can be written as a sum of positive squares in only one way, i.e., 25250625 + 12397441 = 5025^2 + 3521^2 .

It is not an unprimeable number, because it can be changed into a prime (37648067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9412015 + ... + 9412018.

Almost surely, 2^37648066 is an apocalyptic number.

37648066 is a deficient number, since it is larger than the sum of its proper divisors (18824036).

37648066 is a wasteful number, since it uses less digits than its factorization.

37648066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18824035.

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 37648066 is about 6135.8019850709. The cubic root of 37648066 is about 335.1564309888.

The spelling of 37648066 in words is "thirty-seven million, six hundred forty-eight thousand, sixty-six".