961427580 has 24 divisors (see below), whose sum is σ = 2691997392. Its totient is φ = 256380672.

The previous prime is 961427563. The next prime is 961427581. The reversal of 961427580 is 85724169.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961427581) 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, 8011837 + ... + 8011956.

It is an arithmetic number, because the mean of its divisors is an integer number (112166558).

Almost surely, 2^961427580 is an apocalyptic number.

It is an amenable number.

961427580 is an abundant number, since it is smaller than the sum of its proper divisors (1730569812).

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

961427580 is a wasteful number, since it uses less digits than its factorization.

961427580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16023805 (or 16023803 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 961427580 is about 31006.8956846699. The cubic root of 961427580 is about 986.9735757459.

The spelling of 961427580 in words is "nine hundred sixty-one million, four hundred twenty-seven thousand, five hundred eighty".