624987494 has 4 divisors (see below), whose sum is σ = 937481244. Its totient is φ = 312493746.

The previous prime is 624987491. The next prime is 624987509. The reversal of 624987494 is 494789426.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (624987491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156246872 + ... + 156246875.

It is an arithmetic number, because the mean of its divisors is an integer number (234370311).

Almost surely, 2^624987494 is an apocalyptic number.

624987494 is a deficient number, since it is larger than the sum of its proper divisors (312493750).

624987494 is a wasteful number, since it uses less digits than its factorization.

624987494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312493749.

The product of its digits is 3483648, while the sum is 53.

The square root of 624987494 is about 24999.7498787488. The cubic root of 624987494 is about 854.9822706445.

The spelling of 624987494 in words is "six hundred twenty-four million, nine hundred eighty-seven thousand, four hundred ninety-four".