34009725 has 24 divisors (see below), whose sum is σ = 56400160. Its totient is φ = 18083520.

The previous prime is 34009693. The next prime is 34009727. The reversal of 34009725 is 52790043.

It is not a de Polignac number, because 34009725 - 2⁵ = 34009693 is a prime.

It is a super-2 number, since 2×34009725² = 2313322789151250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 34009692 and 34009701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34009727) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40611 + ... + 41439.

Almost surely, 2^34009725 is an apocalyptic number.

It is an amenable number.

34009725 is a deficient number, since it is larger than the sum of its proper divisors (22390435).

34009725 is a wasteful number, since it uses less digits than its factorization.

34009725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389 (or 1384 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 34009725 is about 5831.7857470933. The cubic root of 34009725 is about 323.9920646586.

Adding to 34009725 its reverse (52790043), we get a palindrome (86799768).

The spelling of 34009725 in words is "thirty-four million, nine thousand, seven hundred twenty-five".