39697722 has 16 divisors (see below), whose sum is σ = 88217280. Its totient is φ = 13232556.

The previous prime is 39697711. The next prime is 39697727. The reversal of 39697722 is 22779693.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (39697727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 367518 + ... + 367625.

It is an arithmetic number, because the mean of its divisors is an integer number (5513580).

Almost surely, 2^39697722 is an apocalyptic number.

39697722 is an abundant number, since it is smaller than the sum of its proper divisors (48519558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39697722 is a wasteful number, since it uses less digits than its factorization.

39697722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735154 (or 735148 counting only the distinct ones).

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

The square root of 39697722 is about 6300.6128273367. The cubic root of 39697722 is about 341.1315299424.

The spelling of 39697722 in words is "thirty-nine million, six hundred ninety-seven thousand, seven hundred twenty-two".