761747087 has 4 divisors (see below), whose sum is σ = 762260160. Its totient is φ = 761234016.

The previous prime is 761747081. The next prime is 761747113. The reversal of 761747087 is 780747167.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 780747167 = 23 ⋅33945529.

It is a cyclic number.

It is not a de Polignac number, because 761747087 - 2⁴ = 761747071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (761747081) 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, 254303 + ... + 257280.

It is an arithmetic number, because the mean of its divisors is an integer number (190565040).

Almost surely, 2^761747087 is an apocalyptic number.

761747087 is a deficient number, since it is larger than the sum of its proper divisors (513073).

761747087 is a wasteful number, since it uses less digits than its factorization.

761747087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513072.

The product of its (nonzero) digits is 460992, while the sum is 47.

The square root of 761747087 is about 27599.7660678492. The cubic root of 761747087 is about 913.2792715646.

The spelling of 761747087 in words is "seven hundred sixty-one million, seven hundred forty-seven thousand, eighty-seven".