7690961 has 2 divisors, whose sum is σ = 7690962. Its totient is φ = 7690960.

The previous prime is 7690951. The next prime is 7690967. The reversal of 7690961 is 1690967.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6345361 + 1345600 = 2519^2 + 1160^2 .

It is an emirp because it is prime and its reverse (1690967) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7690961 - 2⁶ = 7690897 is a prime.

It is a super-2 number, since 2×7690961² = 118301762207042, which contains 22 as substring.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (7690967) 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, 3845480 + 3845481.

It is an arithmetic number, because the mean of its divisors is an integer number (3845481).

Almost surely, 2^7690961 is an apocalyptic number.

It is an amenable number.

7690961 is a deficient number, since it is larger than the sum of its proper divisors (1).

7690961 is an equidigital number, since it uses as much as digits as its factorization.

7690961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 7690961 is about 2773.2581920910. The cubic root of 7690961 is about 197.3907829621.

It can be divided in two parts, 7690 and 961, that multiplied together give a triangular number (7390090 = T₃₈₄₄).

The spelling of 7690961 in words is "seven million, six hundred ninety thousand, nine hundred sixty-one".