760421989 has 2 divisors, whose sum is σ = 760421990. Its totient is φ = 760421988.

The previous prime is 760421941. The next prime is 760422017. The reversal of 760421989 is 989124067.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 710648964 + 49773025 = 26658^2 + 7055^2 .

It is an emirp because it is prime and its reverse (989124067) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 760421989 - 2¹¹ = 760419941 is a prime.

It is a super-2 number, since 2×760421989² = 1156483202709432242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (760421939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 380210994 + 380210995.

It is an arithmetic number, because the mean of its divisors is an integer number (380210995).

Almost surely, 2^760421989 is an apocalyptic number.

It is an amenable number.

760421989 is a deficient number, since it is larger than the sum of its proper divisors (1).

760421989 is an equidigital number, since it uses as much as digits as its factorization.

760421989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 760421989 is about 27575.7500169986. The cubic root of 760421989 is about 912.7493988716.

The spelling of 760421989 in words is "seven hundred sixty million, four hundred twenty-one thousand, nine hundred eighty-nine".