61677732 has 12 divisors (see below), whose sum is σ = 143914736. Its totient is φ = 20559240.

The previous prime is 61677731. The next prime is 61677757. The reversal of 61677732 is 23777616.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (61677731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2569894 + ... + 2569917.

Almost surely, 2^61677732 is an apocalyptic number.

It is an amenable number.

61677732 is an abundant number, since it is smaller than the sum of its proper divisors (82237004).

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

61677732 is a wasteful number, since it uses less digits than its factorization.

61677732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5139818 (or 5139816 counting only the distinct ones).

The product of its digits is 74088, while the sum is 39.

The square root of 61677732 is about 7853.5171738527. The cubic root of 61677732 is about 395.1022157090.

The spelling of 61677732 in words is "sixty-one million, six hundred seventy-seven thousand, seven hundred thirty-two".