61214904 has 24 divisors (see below), whose sum is σ = 165790560. Its totient is φ = 20404944.

The previous prime is 61214899. The next prime is 61214921. The reversal of 61214904 is 40941216.

61214904 is a `hidden beast` number, since 612 + 1 + 49 + 0 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 425032 + ... + 425175.

It is an arithmetic number, because the mean of its divisors is an integer number (6907940).

Almost surely, 2^61214904 is an apocalyptic number.

It is an amenable number.

61214904 is an abundant number, since it is smaller than the sum of its proper divisors (104575656).

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

61214904 is a wasteful number, since it uses less digits than its factorization.

61214904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850219 (or 850212 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 61214904 is about 7823.9953987717. The cubic root of 61214904 is about 394.1114546361. Note that the first 3 decimals are identical.

It can be divided in two parts, 6121 and 4904, that added together give a square (11025 = 105²).

The spelling of 61214904 in words is "sixty-one million, two hundred fourteen thousand, nine hundred four".