61946680 has 32 divisors (see below), whose sum is σ = 143879040. Its totient is φ = 23978880.

The previous prime is 61946641. The next prime is 61946681. The reversal of 61946680 is 8664916.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61946681) 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, 23739 + ... + 26218.

It is an arithmetic number, because the mean of its divisors is an integer number (4496220).

Almost surely, 2^61946680 is an apocalyptic number.

It is an amenable number.

61946680 is an abundant number, since it is smaller than the sum of its proper divisors (81932360).

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

61946680 is a wasteful number, since it uses less digits than its factorization.

61946680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49999 (or 49995 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 61946680 is about 7870.6213223608. The cubic root of 61946680 is about 395.6756688679.

It can be divided in two parts, 61946 and 680, that added together give a palindrome (62626).

The spelling of 61946680 in words is "sixty-one million, nine hundred forty-six thousand, six hundred eighty".