76537261 has 4 divisors (see below), whose sum is σ = 79864992. Its totient is φ = 73209532.

The previous prime is 76537231. The next prime is 76537271. The reversal of 76537261 is 16273567.

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: 16273567 = 193 ⋅84319.

It is a cyclic number.

It is not a de Polignac number, because 76537261 - 2⁵ = 76537229 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 76537261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76537211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1663831 + ... + 1663876.

It is an arithmetic number, because the mean of its divisors is an integer number (19966248).

Almost surely, 2^76537261 is an apocalyptic number.

It is an amenable number.

76537261 is a deficient number, since it is larger than the sum of its proper divisors (3327731).

76537261 is a wasteful number, since it uses less digits than its factorization.

76537261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3327730.

The product of its digits is 52920, while the sum is 37.

The square root of 76537261 is about 8748.5576525505. The cubic root of 76537261 is about 424.5781484248.

The spelling of 76537261 in words is "seventy-six million, five hundred thirty-seven thousand, two hundred sixty-one".