61797402 has 12 divisors (see below), whose sum is σ = 133894410. Its totient is φ = 20599128.

The previous prime is 61797391. The next prime is 61797403. The reversal of 61797402 is 20479716.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 61638201 + 159201 = 7851^2 + 399^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (61797403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1716577 + ... + 1716612.

Almost surely, 2^61797402 is an apocalyptic number.

61797402 is an abundant number, since it is smaller than the sum of its proper divisors (72097008).

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

61797402 is a wasteful number, since it uses less digits than its factorization.

61797402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3433197 (or 3433194 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 61797402 is about 7861.1323611805. The cubic root of 61797402 is about 395.3575825113.

The spelling of 61797402 in words is "sixty-one million, seven hundred ninety-seven thousand, four hundred two".