61676172 has 18 divisors (see below), whose sum is σ = 155903748. Its totient is φ = 20558712.

The previous prime is 61676161. The next prime is 61676183. The reversal of 61676172 is 27167616.

61676172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (61676161) and next prime (61676183).

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1713227 = 61676172 / (6 + 1 + 6 + 7 + 6 + 1 + 7 + 2).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 856578 + ... + 856649.

Almost surely, 2^61676172 is an apocalyptic number.

It is an amenable number.

61676172 is an abundant number, since it is smaller than the sum of its proper divisors (94227576).

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

61676172 is a wasteful number, since it uses less digits than its factorization.

61676172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713237 (or 1713232 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 61676172 is about 7853.4178546668. The cubic root of 61676172 is about 395.0988846059.

The spelling of 61676172 in words is "sixty-one million, six hundred seventy-six thousand, one hundred seventy-two".