76224261 has 4 divisors (see below), whose sum is σ = 101632352. Its totient is φ = 50816172.

The previous prime is 76224259. The next prime is 76224287. The reversal of 76224261 is 16242267.

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: 16242267 = 3 ⋅5414089.

It is not a de Polignac number, because 76224261 - 2¹ = 76224259 is a prime.

It is a super-2 number, since 2×76224261² = 11620275929992242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76224241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12704041 + ... + 12704046.

It is an arithmetic number, because the mean of its divisors is an integer number (25408088).

Almost surely, 2^76224261 is an apocalyptic number.

It is an amenable number.

76224261 is a deficient number, since it is larger than the sum of its proper divisors (25408091).

76224261 is a wasteful number, since it uses less digits than its factorization.

76224261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25408090.

The product of its digits is 8064, while the sum is 30.

The square root of 76224261 is about 8730.6506630377. The cubic root of 76224261 is about 423.9985852718.

The spelling of 76224261 in words is "seventy-six million, two hundred twenty-four thousand, two hundred sixty-one".