920887001 has 2 divisors, whose sum is σ = 920887002. Its totient is φ = 920887000.

The previous prime is 920886977. The next prime is 920887007. The reversal of 920887001 is 100788029.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 889470976 + 31416025 = 29824^2 + 5605^2 .

It is an emirp because it is prime and its reverse (100788029) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 920887001 - 2¹⁸ = 920624857 is a prime.

It is a super-2 number, since 2×920887001² = 1696065737221548002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (920887007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460443500 + 460443501.

It is an arithmetic number, because the mean of its divisors is an integer number (460443501).

Almost surely, 2^920887001 is an apocalyptic number.

It is an amenable number.

920887001 is a deficient number, since it is larger than the sum of its proper divisors (1).

920887001 is an equidigital number, since it uses as much as digits as its factorization.

920887001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 920887001 is about 30346.1200320568. The cubic root of 920887001 is about 972.9012936688.

The spelling of 920887001 in words is "nine hundred twenty million, eight hundred eighty-seven thousand, one".