61770942 has 12 divisors (see below), whose sum is σ = 133837080. Its totient is φ = 20590308.

The previous prime is 61770913. The next prime is 61770953. The reversal of 61770942 is 24907716.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 61770897 and 61770906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1715842 + ... + 1715877.

It is an arithmetic number, because the mean of its divisors is an integer number (11153090).

Almost surely, 2^61770942 is an apocalyptic number.

61770942 is an abundant number, since it is smaller than the sum of its proper divisors (72066138).

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

61770942 is a wasteful number, since it uses less digits than its factorization.

61770942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3431727 (or 3431724 counting only the distinct ones).

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

The square root of 61770942 is about 7859.4492173434. The cubic root of 61770942 is about 395.3011472636.

The spelling of 61770942 in words is "sixty-one million, seven hundred seventy thousand, nine hundred forty-two".