76072247 has 4 divisors (see below), whose sum is σ = 79379760. Its totient is φ = 72764736.

The previous prime is 76072223. The next prime is 76072253. The reversal of 76072247 is 74227067.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74227067 = 1777 ⋅41771.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76072247 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 (76072267) 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, 1653722 + ... + 1653767.

It is an arithmetic number, because the mean of its divisors is an integer number (19844940).

Almost surely, 2^76072247 is an apocalyptic number.

76072247 is a deficient number, since it is larger than the sum of its proper divisors (3307513).

76072247 is a wasteful number, since it uses less digits than its factorization.

76072247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3307512.

The product of its (nonzero) digits is 32928, while the sum is 35.

The square root of 76072247 is about 8721.9405524230. The cubic root of 76072247 is about 423.7165376476.

The spelling of 76072247 in words is "seventy-six million, seventy-two thousand, two hundred forty-seven".