61626164 has 12 divisors (see below), whose sum is σ = 110760804. Its totient is φ = 29980224.

The previous prime is 61626151. The next prime is 61626167. The reversal of 61626164 is 46162616.

It can be written as a sum of positive squares in 2 ways, for example, as 42354064 + 19272100 = 6508^2 + 4390^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 61626164.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61626167) 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, 208049 + ... + 208344.

It is an arithmetic number, because the mean of its divisors is an integer number (9230067).

Almost surely, 2^61626164 is an apocalyptic number.

It is an amenable number.

61626164 is a deficient number, since it is larger than the sum of its proper divisors (49134640).

61626164 is a wasteful number, since it uses less digits than its factorization.

61626164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416434 (or 416432 counting only the distinct ones).

The product of its digits is 10368, while the sum is 32.

The square root of 61626164 is about 7850.2333723272. The cubic root of 61626164 is about 394.9920716242.

The spelling of 61626164 in words is "sixty-one million, six hundred twenty-six thousand, one hundred sixty-four".