61380634 has 12 divisors (see below), whose sum is σ = 107103114. Its totient is φ = 26305944.

The previous prime is 61380623. The next prime is 61380647. The reversal of 61380634 is 43608316.

It can be written as a sum of positive squares in only one way, i.e., 56205009 + 5175625 = 7497^2 + 2275^2 .

It is a junction number, because it is equal to n+sod(n) for n = 61380596 and 61380605.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 313069 + ... + 313264.

Almost surely, 2^61380634 is an apocalyptic number.

61380634 is a deficient number, since it is larger than the sum of its proper divisors (45722480).

61380634 is a wasteful number, since it uses less digits than its factorization.

61380634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626349 (or 626342 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 61380634 is about 7834.5793760737. The cubic root of 61380634 is about 394.4667996646.

The spelling of 61380634 in words is "sixty-one million, three hundred eighty thousand, six hundred thirty-four".