76531247 has 8 divisors (see below), whose sum is σ = 82523616. Its totient is φ = 70553952.

The previous prime is 76531223. The next prime is 76531249. The reversal of 76531247 is 74213567.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 76531247 - 2¹² = 76527151 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 (76531249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8213 + ... + 14849.

It is an arithmetic number, because the mean of its divisors is an integer number (10315452).

Almost surely, 2^76531247 is an apocalyptic number.

76531247 is a deficient number, since it is larger than the sum of its proper divisors (5992369).

76531247 is a wasteful number, since it uses less digits than its factorization.

76531247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7537.

The product of its digits is 35280, while the sum is 35.

The square root of 76531247 is about 8748.2139319978. The cubic root of 76531247 is about 424.5670275675.

The spelling of 76531247 in words is "seventy-six million, five hundred thirty-one thousand, two hundred forty-seven".