34728939 has 32 divisors (see below), whose sum is σ = 59927040. Its totient is φ = 19465056.

The previous prime is 34728931. The next prime is 34728961. The reversal of 34728939 is 93982743.

It is a happy number.

It is not a de Polignac number, because 34728939 - 2³ = 34728931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 34728894 and 34728903.

It is not an unprimeable number, because it can be changed into a prime (34728931) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8284 + ... + 11750.

It is an arithmetic number, because the mean of its divisors is an integer number (1872720).

Almost surely, 2^34728939 is an apocalyptic number.

34728939 is a deficient number, since it is larger than the sum of its proper divisors (25198101).

34728939 is a wasteful number, since it uses less digits than its factorization.

34728939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3536 (or 3530 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 34728939 is about 5893.1264198217. The cubic root of 34728939 is about 326.2600049779.

The spelling of 34728939 in words is "thirty-four million, seven hundred twenty-eight thousand, nine hundred thirty-nine".