61489602 has 24 divisors (see below), whose sum is σ = 133374384. Its totient is φ = 20473944.

The previous prime is 61489601. The next prime is 61489651. The reversal of 61489602 is 20698416.

61489602 is a `hidden beast` number, since 6 + 1 + 48 + 9 + 602 = 666.

It is not an unprimeable number, because it can be changed into a prime (61489601) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 26293 + ... + 28535.

It is an arithmetic number, because the mean of its divisors is an integer number (5557266).

Almost surely, 2^61489602 is an apocalyptic number.

61489602 is an abundant number, since it is smaller than the sum of its proper divisors (71884782).

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

61489602 is a wasteful number, since it uses less digits than its factorization.

61489602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3774 (or 3771 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 61489602 is about 7841.5305903886. The cubic root of 61489602 is about 394.7000917421.

The spelling of 61489602 in words is "sixty-one million, four hundred eighty-nine thousand, six hundred two".