61489704 has 32 divisors (see below), whose sum is σ = 154376640. Its totient is φ = 20409600.

The previous prime is 61489691. The next prime is 61489721. The reversal of 61489704 is 40798416.

It is a happy 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, 469 + ... + 11099.

It is an arithmetic number, because the mean of its divisors is an integer number (4824270).

Almost surely, 2^61489704 is an apocalyptic number.

It is an amenable number.

61489704 is an abundant number, since it is smaller than the sum of its proper divisors (92886936).

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

61489704 is a wasteful number, since it uses less digits than its factorization.

61489704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10881 (or 10877 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 61489704 is about 7841.5370942182. The cubic root of 61489704 is about 394.7003099871.

The spelling of 61489704 in words is "sixty-one million, four hundred eighty-nine thousand, seven hundred four".