61996758 has 16 divisors (see below), whose sum is σ = 124248000. Its totient is φ = 20623176.

The previous prime is 61996757. The next prime is 61996769. The reversal of 61996758 is 85769916.

It is a self number, because there is not a number n which added to its sum of digits gives 61996758.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61996757) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7360 + ... + 13347.

It is an arithmetic number, because the mean of its divisors is an integer number (7765500).

Almost surely, 2^61996758 is an apocalyptic number.

61996758 is an abundant number, since it is smaller than the sum of its proper divisors (62251242).

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

61996758 is a wasteful number, since it uses less digits than its factorization.

61996758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21211.

The product of its digits is 816480, while the sum is 51.

The square root of 61996758 is about 7873.8020041147. The cubic root of 61996758 is about 395.7822622002.

The spelling of 61996758 in words is "sixty-one million, nine hundred ninety-six thousand, seven hundred fifty-eight".