61612746 has 32 divisors (see below), whose sum is σ = 134010240. Its totient is φ = 18771264.

The previous prime is 61612729. The next prime is 61612753. The reversal of 61612746 is 64721616.

It is a super-2 number, since 2×61612746² = 7592260939321032, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4200 + ... + 11868.

It is an arithmetic number, because the mean of its divisors is an integer number (4187820).

Almost surely, 2^61612746 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61612746, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67005120).

61612746 is an abundant number, since it is smaller than the sum of its proper divisors (72397494).

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

61612746 is a wasteful number, since it uses less digits than its factorization.

61612746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7790.

The product of its digits is 12096, while the sum is 33.

The square root of 61612746 is about 7849.3787015279. The cubic root of 61612746 is about 394.9634020464.

The spelling of 61612746 in words is "sixty-one million, six hundred twelve thousand, seven hundred forty-six".