61086477 has 8 divisors (see below), whose sum is σ = 81484864. Its totient is φ = 40706208.

The previous prime is 61086451. The next prime is 61086481. The reversal of 61086477 is 77468016.

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

It is not a de Polignac number, because 61086477 - 2¹⁵ = 61053709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61086427) 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, 10008 + ... + 14910.

It is an arithmetic number, because the mean of its divisors is an integer number (10185608).

Almost surely, 2^61086477 is an apocalyptic number.

It is an amenable number.

61086477 is a deficient number, since it is larger than the sum of its proper divisors (20398387).

61086477 is a wasteful number, since it uses less digits than its factorization.

61086477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9059.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 61086477 is about 7815.7838378502. The cubic root of 61086477 is about 393.8356504026.

The spelling of 61086477 in words is "sixty-one million, eighty-six thousand, four hundred seventy-seven".