61403610 has 16 divisors (see below), whose sum is σ = 147368736. Its totient is φ = 16374288.

The previous prime is 61403581. The next prime is 61403621. The reversal of 61403610 is 1630416.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1023364 + ... + 1023423.

It is an arithmetic number, because the mean of its divisors is an integer number (9210546).

Almost surely, 2^61403610 is an apocalyptic number.

61403610 is an abundant number, since it is smaller than the sum of its proper divisors (85965126).

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

61403610 is a wasteful number, since it uses less digits than its factorization.

61403610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2046797.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 61403610 is about 7836.0455588262. The cubic root of 61403610 is about 394.5160124645.

The spelling of 61403610 in words is "sixty-one million, four hundred three thousand, six hundred ten".