61821046 has 12 divisors (see below), whose sum is σ = 107871588. Its totient is φ = 26494692.

The previous prime is 61820981. The next prime is 61821059. The reversal of 61821046 is 64012816.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 315316 + ... + 315511.

It is an arithmetic number, because the mean of its divisors is an integer number (8989299).

Almost surely, 2^61821046 is an apocalyptic number.

61821046 is a deficient number, since it is larger than the sum of its proper divisors (46050542).

61821046 is a wasteful number, since it uses less digits than its factorization.

61821046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630843 (or 630836 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 61821046 is about 7862.6360719545. The cubic root of 61821046 is about 395.4079980220.

The spelling of 61821046 in words is "sixty-one million, eight hundred twenty-one thousand, forty-six".