761242943 has 4 divisors (see below), whose sum is σ = 762635160. Its totient is φ = 759850728.

The previous prime is 761242939. The next prime is 761242969. The reversal of 761242943 is 349242167.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 349242167 = 9811 ⋅35597.

It is a cyclic number.

It is not a de Polignac number, because 761242943 - 2² = 761242939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 761242897 and 761242906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (761242843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 695288 + ... + 696381.

It is an arithmetic number, because the mean of its divisors is an integer number (190658790).

Almost surely, 2^761242943 is an apocalyptic number.

761242943 is a deficient number, since it is larger than the sum of its proper divisors (1392217).

761242943 is a wasteful number, since it uses less digits than its factorization.

761242943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392216.

The product of its digits is 72576, while the sum is 38.

The square root of 761242943 is about 27590.6314353260. The cubic root of 761242943 is about 913.0777497892.

The spelling of 761242943 in words is "seven hundred sixty-one million, two hundred forty-two thousand, nine hundred forty-three".