993912501 has 16 divisors (see below), whose sum is σ = 1384942464. Its totient is φ = 632833344.

The previous prime is 993912487. The next prime is 993912503. The reversal of 993912501 is 105219399.

It is not a de Polignac number, because 993912501 - 2⁷ = 993912373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 993912501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (993912503) 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, 36075 + ... + 57351.

It is an arithmetic number, because the mean of its divisors is an integer number (86558904).

Almost surely, 2^993912501 is an apocalyptic number.

It is an amenable number.

993912501 is a deficient number, since it is larger than the sum of its proper divisors (391029963).

993912501 is a wasteful number, since it uses less digits than its factorization.

993912501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21980.

The product of its (nonzero) digits is 21870, while the sum is 39.

The square root of 993912501 is about 31526.3778604520. The cubic root of 993912501 is about 997.9667021687.

The spelling of 993912501 in words is "nine hundred ninety-three million, nine hundred twelve thousand, five hundred one".