919900801 has 16 divisors (see below), whose sum is σ = 992257920. Its totient is φ = 850734720.

The previous prime is 919900799. The next prime is 919900811. The reversal of 919900801 is 108009919.

It is a cyclic number.

It is not a de Polignac number, because 919900801 - 2¹ = 919900799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (919900811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77221 + ... + 88333.

It is an arithmetic number, because the mean of its divisors is an integer number (62016120).

Almost surely, 2^919900801 is an apocalyptic number.

It is an amenable number.

919900801 is a deficient number, since it is larger than the sum of its proper divisors (72357119).

919900801 is a wasteful number, since it uses less digits than its factorization.

919900801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11256.

The product of its (nonzero) digits is 5832, while the sum is 37.

The square root of 919900801 is about 30329.8664850342. The cubic root of 919900801 is about 972.5538684990.

The spelling of 919900801 in words is "nine hundred nineteen million, nine hundred thousand, eight hundred one".