61722964 has 12 divisors (see below), whose sum is σ = 108369184. Its totient is φ = 30760344.

The previous prime is 61722949. The next prime is 61722967. The reversal of 61722964 is 46922716.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61722967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23904 + ... + 26359.

Almost surely, 2^61722964 is an apocalyptic number.

It is an amenable number.

61722964 is a deficient number, since it is larger than the sum of its proper divisors (46646220).

61722964 is a wasteful number, since it uses less digits than its factorization.

61722964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50574 (or 50572 counting only the distinct ones).

The product of its digits is 36288, while the sum is 37.

The square root of 61722964 is about 7856.3963749292. The cubic root of 61722964 is about 395.1987762014.

The spelling of 61722964 in words is "sixty-one million, seven hundred twenty-two thousand, nine hundred sixty-four".