34701728 has 12 divisors (see below), whose sum is σ = 68319090. Its totient is φ = 17350848.

The previous prime is 34701727. The next prime is 34701739. The reversal of 34701728 is 82710743.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 27583504 + 7118224 = 5252^2 + 2668^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 1084429 = 34701728 / (3 + 4 + 7 + 0 + 1 + 7 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 34701694 and 34701703.

It is not an unprimeable number, because it can be changed into a prime (34701727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 542183 + ... + 542246.

Almost surely, 2^34701728 is an apocalyptic number.

It is an amenable number.

34701728 is a deficient number, since it is larger than the sum of its proper divisors (33617362).

34701728 is a wasteful number, since it uses less digits than its factorization.

34701728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084439 (or 1084431 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 34701728 is about 5890.8172607882. The cubic root of 34701728 is about 326.1747717311.

The spelling of 34701728 in words is "thirty-four million, seven hundred one thousand, seven hundred twenty-eight".