61279536 has 20 divisors (see below), whose sum is σ = 158305592. Its totient is φ = 20426496.

The previous prime is 61279531. The next prime is 61279553. The reversal of 61279536 is 63597216.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 61279494 and 61279503.

It is not an unprimeable number, because it can be changed into a prime (61279531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 638281 + ... + 638376.

Almost surely, 2^61279536 is an apocalyptic number.

It is an amenable number.

61279536 is an abundant number, since it is smaller than the sum of its proper divisors (97026056).

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

61279536 is a wasteful number, since it uses less digits than its factorization.

61279536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276668 (or 1276662 counting only the distinct ones).

The product of its digits is 68040, while the sum is 39.

The square root of 61279536 is about 7828.1246796407. The cubic root of 61279536 is about 394.2501096064.

The spelling of 61279536 in words is "sixty-one million, two hundred seventy-nine thousand, five hundred thirty-six".