761721041 has 4 divisors (see below), whose sum is σ = 761957184. Its totient is φ = 761484900.

The previous prime is 761721029. The next prime is 761721053. The reversal of 761721041 is 140127167.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 140127167 = 283 ⋅495149.

It is an interprime number because it is at equal distance from previous prime (761721029) and next prime (761721053).

It is a cyclic number.

It is not a de Polignac number, because 761721041 - 2⁶ = 761720977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 761720995 and 761721013.

It is not an unprimeable number, because it can be changed into a prime (761721011) 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, 113165 + ... + 119706.

It is an arithmetic number, because the mean of its divisors is an integer number (190489296).

Almost surely, 2^761721041 is an apocalyptic number.

It is an amenable number.

761721041 is a deficient number, since it is larger than the sum of its proper divisors (236143).

761721041 is a wasteful number, since it uses less digits than its factorization.

761721041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236142.

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 761721041 is about 27599.2942119903. The cubic root of 761721041 is about 913.2688623603.

The spelling of 761721041 in words is "seven hundred sixty-one million, seven hundred twenty-one thousand, forty-one".