890373749 has 2 divisors, whose sum is σ = 890373750. Its totient is φ = 890373748.

The previous prime is 890373733. The next prime is 890373761. The reversal of 890373749 is 947373098.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 833476900 + 56896849 = 28870^2 + 7543^2 .

It is a cyclic number.

It is not a de Polignac number, because 890373749 - 2⁴ = 890373733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 890373697 and 890373706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (890373349) 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 as a sum of consecutive naturals, namely, 445186874 + 445186875.

It is an arithmetic number, because the mean of its divisors is an integer number (445186875).

Almost surely, 2^890373749 is an apocalyptic number.

It is an amenable number.

890373749 is a deficient number, since it is larger than the sum of its proper divisors (1).

890373749 is an equidigital number, since it uses as much as digits as its factorization.

890373749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1143072, while the sum is 50.

The square root of 890373749 is about 29839.1311703273. The cubic root of 890373749 is about 962.0348004147.

The spelling of 890373749 in words is "eight hundred ninety million, three hundred seventy-three thousand, seven hundred forty-nine".