900684401 has 2 divisors, whose sum is σ = 900684402. Its totient is φ = 900684400.

The previous prime is 900684353. The next prime is 900684403. The reversal of 900684401 is 104486009.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 458002801 + 442681600 = 21401^2 + 21040^2 .

It is an emirp because it is prime and its reverse (104486009) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 900684401 - 2²² = 896490097 is a prime.

It is a super-2 number, since 2×900684401² = 1622464780409457602, which contains 22 as substring.

Together with 900684403, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (900684403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450342200 + 450342201.

It is an arithmetic number, because the mean of its divisors is an integer number (450342201).

Almost surely, 2^900684401 is an apocalyptic number.

It is an amenable number.

900684401 is a deficient number, since it is larger than the sum of its proper divisors (1).

900684401 is an equidigital number, since it uses as much as digits as its factorization.

900684401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 900684401 is about 30011.4045156171. The cubic root of 900684401 is about 965.7340566333.

The spelling of 900684401 in words is "nine hundred million, six hundred eighty-four thousand, four hundred one".