39242997 has 6 divisors (see below), whose sum is σ = 56684342. Its totient is φ = 26161992.

The previous prime is 39242989. The next prime is 39243007. The reversal of 39242997 is 79924293.

It can be written as a sum of positive squares in only one way, i.e., 35533521 + 3709476 = 5961^2 + 1926^2 .

It is not a de Polignac number, because 39242997 - 2³ = 39242989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39242927) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2180158 + ... + 2180175.

Almost surely, 2^39242997 is an apocalyptic number.

It is an amenable number.

39242997 is a deficient number, since it is larger than the sum of its proper divisors (17441345).

39242997 is a wasteful number, since it uses less digits than its factorization.

39242997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4360339 (or 4360336 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 39242997 is about 6264.4231178936. The cubic root of 39242997 is about 339.8240063790.

The spelling of 39242997 in words is "thirty-nine million, two hundred forty-two thousand, nine hundred ninety-seven".