624274247 has 2 divisors, whose sum is σ = 624274248. Its totient is φ = 624274246.

The previous prime is 624274201. The next prime is 624274253. The reversal of 624274247 is 742472426.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 624274247 - 2²⁰ = 623225671 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 624274247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (624274447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312137123 + 312137124.

It is an arithmetic number, because the mean of its divisors is an integer number (312137124).

Almost surely, 2^624274247 is an apocalyptic number.

624274247 is a deficient number, since it is larger than the sum of its proper divisors (1).

624274247 is an equidigital number, since it uses as much as digits as its factorization.

624274247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 150528, while the sum is 38.

The square root of 624274247 is about 24985.4807238124. The cubic root of 624274247 is about 854.6569064469.

The spelling of 624274247 in words is "six hundred twenty-four million, two hundred seventy-four thousand, two hundred forty-seven".