61840634 has 8 divisors (see below), whose sum is σ = 92795220. Its totient is φ = 30908896.

The previous prime is 61840591. The next prime is 61840657. The reversal of 61840634 is 43604816.

It can be written as a sum of positive squares in 2 ways, for example, as 61575409 + 265225 = 7847^2 + 515^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 61840634.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5312 + ... + 12324.

Almost surely, 2^61840634 is an apocalyptic number.

61840634 is a deficient number, since it is larger than the sum of its proper divisors (30954586).

61840634 is a wasteful number, since it uses less digits than its factorization.

61840634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11424.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 61840634 is about 7863.8816115198. The cubic root of 61840634 is about 395.4497552901.

The spelling of 61840634 in words is "sixty-one million, eight hundred forty thousand, six hundred thirty-four".