61373980 has 12 divisors (see below), whose sum is σ = 128885400. Its totient is φ = 24549584.

The previous prime is 61373953. The next prime is 61373981. The reversal of 61373980 is 8937316.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61373981) 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, 1534330 + ... + 1534369.

It is an arithmetic number, because the mean of its divisors is an integer number (10740450).

Almost surely, 2^61373980 is an apocalyptic number.

It is an amenable number.

61373980 is an abundant number, since it is smaller than the sum of its proper divisors (67511420).

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

61373980 is a wasteful number, since it uses less digits than its factorization.

61373980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3068708 (or 3068706 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 61373980 is about 7834.1547087098. The cubic root of 61373980 is about 394.4525450224.

The spelling of 61373980 in words is "sixty-one million, three hundred seventy-three thousand, nine hundred eighty".