61705672 has 32 divisors (see below), whose sum is σ = 132505920. Its totient is φ = 26389440.

The previous prime is 61705669. The next prime is 61705687. The reversal of 61705672 is 27650716.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36183 + ... + 37849.

It is an arithmetic number, because the mean of its divisors is an integer number (4140810).

Almost surely, 2^61705672 is an apocalyptic number.

It is an amenable number.

61705672 is an abundant number, since it is smaller than the sum of its proper divisors (70800248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61705672 is a wasteful number, since it uses less digits than its factorization.

61705672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2341 (or 2337 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 61705672 is about 7855.2957932849. The cubic root of 61705672 is about 395.1618671102.

The spelling of 61705672 in words is "sixty-one million, seven hundred five thousand, six hundred seventy-two".