901955489 has 8 divisors (see below), whose sum is σ = 913546920. Its totient is φ = 890424576.

The previous prime is 901955473. The next prime is 901955501. The reversal of 901955489 is 984559109.

It can be written as a sum of positive squares in 4 ways, for example, as 295564864 + 606390625 = 17192^2 + 24625^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 901955489 - 2⁴ = 901955473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (901955429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15257 + ... + 45129.

It is an arithmetic number, because the mean of its divisors is an integer number (114193365).

Almost surely, 2^901955489 is an apocalyptic number.

It is an amenable number.

901955489 is a deficient number, since it is larger than the sum of its proper divisors (11591431).

901955489 is a wasteful number, since it uses less digits than its factorization.

901955489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30259.

The product of its (nonzero) digits is 583200, while the sum is 50.

The square root of 901955489 is about 30032.5737991268. The cubic root of 901955489 is about 966.1881394659.

The spelling of 901955489 in words is "nine hundred one million, nine hundred fifty-five thousand, four hundred eighty-nine".