988926401 has 4 divisors (see below), whose sum is σ = 1002473412. Its totient is φ = 975379392.

The previous prime is 988926359. The next prime is 988926413. The reversal of 988926401 is 104629889.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 175536001 + 813390400 = 13249^2 + 28520^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-988926401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (988926461) 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, 6773396 + ... + 6773541.

It is an arithmetic number, because the mean of its divisors is an integer number (250618353).

Almost surely, 2^988926401 is an apocalyptic number.

It is an amenable number.

988926401 is a deficient number, since it is larger than the sum of its proper divisors (13547011).

988926401 is a wasteful number, since it uses less digits than its factorization.

988926401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13547010.

The product of its (nonzero) digits is 248832, while the sum is 47.

The square root of 988926401 is about 31447.2002092396. The cubic root of 988926401 is about 996.2950909338.

The spelling of 988926401 in words is "nine hundred eighty-eight million, nine hundred twenty-six thousand, four hundred one".