61670484 has 42 divisors (see below), whose sum is σ = 161818650. Its totient is φ = 20555856.

The previous prime is 61670461. The next prime is 61670489. The reversal of 61670484 is 48407616.

It can be written as a sum of positive squares in only one way, i.e., 40602384 + 21068100 = 6372^2 + 4590^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61670489) 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 13 ways as a sum of consecutive naturals, for example, 7659 + ... + 13490.

It is an arithmetic number, because the mean of its divisors is an integer number (3852825).

Almost surely, 2^61670484 is an apocalyptic number.

It is an amenable number.

61670484 is an abundant number, since it is smaller than the sum of its proper divisors (100148166).

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

61670484 is a wasteful number, since it uses less digits than its factorization.

61670484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21171 (or 21154 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 61670484 is about 7853.0557109956. The cubic root of 61670484 is about 395.0867384157.

The spelling of 61670484 in words is "sixty-one million, six hundred seventy thousand, four hundred eighty-four".