61656367 has 8 divisors (see below), whose sum is σ = 63278336. Its totient is φ = 60043032.

The previous prime is 61656347. The next prime is 61656373. The reversal of 61656367 is 76365616.

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

It is a cyclic number.

It is not a de Polignac number, because 61656367 - 2²³ = 53267759 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61656337) 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, 13828 + ... + 17734.

It is an arithmetic number, because the mean of its divisors is an integer number (7909792).

Almost surely, 2^61656367 is an apocalyptic number.

61656367 is a deficient number, since it is larger than the sum of its proper divisors (1621969).

61656367 is a wasteful number, since it uses less digits than its factorization.

61656367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4317.

The product of its digits is 136080, while the sum is 40.

The square root of 61656367 is about 7852.1568374556. The cubic root of 61656367 is about 395.0565896597.

The spelling of 61656367 in words is "sixty-one million, six hundred fifty-six thousand, three hundred sixty-seven".