761969617 has 2 divisors, whose sum is σ = 761969618. Its totient is φ = 761969616.

The previous prime is 761969609. The next prime is 761969633. The reversal of 761969617 is 716969167.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 752734096 + 9235521 = 27436^2 + 3039^2 .

It is an emirp because it is prime and its reverse (716969167) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 761969617 - 2³ = 761969609 is a prime.

It is a super-2 number, since 2×761969617² = 1161195394462253378, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (761969717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 380984808 + 380984809.

It is an arithmetic number, because the mean of its divisors is an integer number (380984809).

Almost surely, 2^761969617 is an apocalyptic number.

It is an amenable number.

761969617 is a deficient number, since it is larger than the sum of its proper divisors (1).

761969617 is an equidigital number, since it uses as much as digits as its factorization.

761969617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 857304, while the sum is 52.

The square root of 761969617 is about 27603.7971482186. The cubic root of 761969617 is about 913.3681953263.

The spelling of 761969617 in words is "seven hundred sixty-one million, nine hundred sixty-nine thousand, six hundred seventeen".