61486761 has 8 divisors (see below), whose sum is σ = 93694144. Its totient is φ = 35135280.

The previous prime is 61486759. The next prime is 61486769. The reversal of 61486761 is 16768416.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61486761 - 2¹ = 61486759 is a prime.

It is a super-2 number, since 2×61486761² = 7561243556542242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61486769) 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, 1463950 + ... + 1463991.

It is an arithmetic number, because the mean of its divisors is an integer number (11711768).

Almost surely, 2^61486761 is an apocalyptic number.

It is an amenable number.

61486761 is a deficient number, since it is larger than the sum of its proper divisors (32207383).

61486761 is a wasteful number, since it uses less digits than its factorization.

61486761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2927951.

The product of its digits is 48384, while the sum is 39.

The square root of 61486761 is about 7841.3494374374. The cubic root of 61486761 is about 394.6940128811.

The spelling of 61486761 in words is "sixty-one million, four hundred eighty-six thousand, seven hundred sixty-one".