61272679 has 8 divisors (see below), whose sum is σ = 68261760. Its totient is φ = 54608736.

The previous prime is 61272671. The next prime is 61272683. The reversal of 61272679 is 97627216.

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

It is not a de Polignac number, because 61272679 - 2³ = 61272671 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 (61272671) 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, 80887 + ... + 81640.

It is an arithmetic number, because the mean of its divisors is an integer number (8532720).

Almost surely, 2^61272679 is an apocalyptic number.

61272679 is a deficient number, since it is larger than the sum of its proper divisors (6989081).

61272679 is a wasteful number, since it uses less digits than its factorization.

61272679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162569.

The product of its digits is 63504, while the sum is 40.

The square root of 61272679 is about 7827.6866953143. The cubic root of 61272679 is about 394.2354039149.

The spelling of 61272679 in words is "sixty-one million, two hundred seventy-two thousand, six hundred seventy-nine".