61212804 has 12 divisors (see below), whose sum is σ = 142829904. Its totient is φ = 20404264.

The previous prime is 61212799. The next prime is 61212841. The reversal of 61212804 is 40821216.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2550522 + ... + 2550545.

It is an arithmetic number, because the mean of its divisors is an integer number (11902492).

Almost surely, 2^61212804 is an apocalyptic number.

It is an amenable number.

61212804 is an abundant number, since it is smaller than the sum of its proper divisors (81617100).

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

61212804 is a wasteful number, since it uses less digits than its factorization.

61212804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5101074 (or 5101072 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 61212804 is about 7823.8611950878. The cubic root of 61212804 is about 394.1069478713.

The spelling of 61212804 in words is "sixty-one million, two hundred twelve thousand, eight hundred four".