39693974 has 8 divisors (see below), whose sum is σ = 59935728. Its totient is φ = 19715400.

The previous prime is 39693971. The next prime is 39693989. The reversal of 39693974 is 47939693.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×39693974² = 3151223143825352, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39693971) 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, 65417 + ... + 66020.

It is an arithmetic number, because the mean of its divisors is an integer number (7491966).

Almost surely, 2^39693974 is an apocalyptic number.

39693974 is a deficient number, since it is larger than the sum of its proper divisors (20241754).

39693974 is a wasteful number, since it uses less digits than its factorization.

39693974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131590.

The product of its digits is 1102248, while the sum is 50.

The square root of 39693974 is about 6300.3153889309. The cubic root of 39693974 is about 341.1207937998.

The spelling of 39693974 in words is "thirty-nine million, six hundred ninety-three thousand, nine hundred seventy-four".