61978482 has 24 divisors (see below), whose sum is σ = 134454060. Its totient is φ = 20633760.

The previous prime is 61978471. The next prime is 61978489. The reversal of 61978482 is 28487916.

It can be written as a sum of positive squares in 2 ways, for example, as 60980481 + 998001 = 7809^2 + 999^2 .

It is not an unprimeable number, because it can be changed into a prime (61978489) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17632 + ... + 20852.

Almost surely, 2^61978482 is an apocalyptic number.

61978482 is an abundant number, since it is smaller than the sum of its proper divisors (72475578).

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

61978482 is a wasteful number, since it uses less digits than its factorization.

61978482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4298 (or 4295 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 61978482 is about 7872.6413610681. The cubic root of 61978482 is about 395.7433675453.

The spelling of 61978482 in words is "sixty-one million, nine hundred seventy-eight thousand, four hundred eighty-two".