39028897 has 4 divisors (see below), whose sum is σ = 39062596. Its totient is φ = 38995200.

The previous prime is 39028879. The next prime is 39028901. The reversal of 39028897 is 79882093.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79882093 = 47 ⋅1699619.

It can be written as a sum of positive squares in 2 ways, for example, as 11999296 + 27029601 = 3464^2 + 5199^2 .

It is a cyclic number.

It is not a de Polignac number, because 39028897 - 2¹⁵ = 38996129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39028877) 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, 15048 + ... + 17449.

It is an arithmetic number, because the mean of its divisors is an integer number (9765649).

Almost surely, 2^39028897 is an apocalyptic number.

It is an amenable number.

39028897 is a deficient number, since it is larger than the sum of its proper divisors (33699).

39028897 is a wasteful number, since it uses less digits than its factorization.

39028897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33698.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 39028897 is about 6247.3111816205. The cubic root of 39028897 is about 339.2048807490.

The spelling of 39028897 in words is "thirty-nine million, twenty-eight thousand, eight hundred ninety-seven".