87062761 has 4 divisors (see below), whose sum is σ = 87236352. Its totient is φ = 86889172.

The previous prime is 87062749. The next prime is 87062777. The reversal of 87062761 is 16726078.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 87062761 - 2⁹ = 87062249 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87062761.

It is not an unprimeable number, because it can be changed into a prime (87062741) 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 in 3 ways as a sum of consecutive naturals, for example, 86041 + ... + 87046.

It is an arithmetic number, because the mean of its divisors is an integer number (21809088).

Almost surely, 2^87062761 is an apocalyptic number.

It is an amenable number.

87062761 is a deficient number, since it is larger than the sum of its proper divisors (173591).

87062761 is a wasteful number, since it uses less digits than its factorization.

87062761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173590.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 87062761 is about 9330.7427892960. The cubic root of 87062761 is about 443.2112871251.

The spelling of 87062761 in words is "eighty-seven million, sixty-two thousand, seven hundred sixty-one".