39479497 has 4 divisors (see below), whose sum is σ = 39604356. Its totient is φ = 39354640.

The previous prime is 39479471. The next prime is 39479507. The reversal of 39479497 is 79497493.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 741321 + 38738176 = 861^2 + 6224^2 .

It is a cyclic number.

It is not a de Polignac number, because 39479497 - 2⁷ = 39479369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39479417) 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, 61954 + ... + 62587.

It is an arithmetic number, because the mean of its divisors is an integer number (9901089).

Almost surely, 2^39479497 is an apocalyptic number.

It is an amenable number.

39479497 is a deficient number, since it is larger than the sum of its proper divisors (124859).

39479497 is a wasteful number, since it uses less digits than its factorization.

39479497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124858.

The product of its digits is 1714608, while the sum is 52.

The square root of 39479497 is about 6283.2712021685. The cubic root of 39479497 is about 340.5052953895.

The spelling of 39479497 in words is "thirty-nine million, four hundred seventy-nine thousand, four hundred ninety-seven".