34961521 has 16 divisors (see below), whose sum is σ = 41451520. Its totient is φ = 28855440.

The previous prime is 34961513. The next prime is 34961533. The reversal of 34961521 is 12516943.

It is a cyclic number.

It is not a de Polignac number, because 34961521 - 2³ = 34961513 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34961551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79420 + ... + 79858.

It is an arithmetic number, because the mean of its divisors is an integer number (2590720).

Almost surely, 2^34961521 is an apocalyptic number.

34961521 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

34961521 is a deficient number, since it is larger than the sum of its proper divisors (6489999).

34961521 is a wasteful number, since it uses less digits than its factorization.

34961521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844.

The product of its digits is 6480, while the sum is 31.

The square root of 34961521 is about 5912.8268197200. The cubic root of 34961521 is about 326.9867133856.

The spelling of 34961521 in words is "thirty-four million, nine hundred sixty-one thousand, five hundred twenty-one".