61805364 has 24 divisors (see below), whose sum is σ = 145080768. Its totient is φ = 20477760.

The previous prime is 61805363. The next prime is 61805371. The reversal of 61805364 is 46350816.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61805363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13417 + ... + 17424.

It is an arithmetic number, because the mean of its divisors is an integer number (6045032).

Almost surely, 2^61805364 is an apocalyptic number.

It is an amenable number.

61805364 is an abundant number, since it is smaller than the sum of its proper divisors (83275404).

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

61805364 is a wasteful number, since it uses less digits than its factorization.

61805364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31015 (or 31013 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 61805364 is about 7861.6387604621. The cubic root of 61805364 is about 395.3745611209.

The spelling of 61805364 in words is "sixty-one million, eight hundred five thousand, three hundred sixty-four".