61980423 has 16 divisors (see below), whose sum is σ = 86904576. Its totient is φ = 39216320.

The previous prime is 61980407. The next prime is 61980461. The reversal of 61980423 is 32408916.

It is a cyclic number.

It is not a de Polignac number, because 61980423 - 2⁴ = 61980407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61980463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5611 + ... + 12467.

It is an arithmetic number, because the mean of its divisors is an integer number (5431536).

Almost surely, 2^61980423 is an apocalyptic number.

61980423 is a deficient number, since it is larger than the sum of its proper divisors (24924153).

61980423 is a wasteful number, since it uses less digits than its factorization.

61980423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7014.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 61980423 is about 7872.7646351202. The cubic root of 61980423 is about 395.7474987095.

The spelling of 61980423 in words is "sixty-one million, nine hundred eighty thousand, four hundred twenty-three".