964661522 has 32 divisors (see below), whose sum is σ = 1604873088. Its totient is φ = 431200000.

The previous prime is 964661519. The next prime is 964661557. The reversal of 964661522 is 225166469.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 964661522.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1094522 + ... + 1095402.

It is an arithmetic number, because the mean of its divisors is an integer number (50152284).

Almost surely, 2^964661522 is an apocalyptic number.

964661522 is a deficient number, since it is larger than the sum of its proper divisors (640211566).

964661522 is a wasteful number, since it uses less digits than its factorization.

964661522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1666.

The product of its digits is 155520, while the sum is 41.

The square root of 964661522 is about 31059.0006600341. Note that the first 3 decimals coincide. The cubic root of 964661522 is about 988.0789608635.

Subtracting from 964661522 its sum of digits (41), we obtain a square (964661481 = 31059²).

The spelling of 964661522 in words is "nine hundred sixty-four million, six hundred sixty-one thousand, five hundred twenty-two".