904740623 has 2 divisors, whose sum is σ = 904740624. Its totient is φ = 904740622.

The previous prime is 904740619. The next prime is 904740653. The reversal of 904740623 is 326047409.

It is a weak prime.

It is an emirp because it is prime and its reverse (326047409) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 904740623 - 2² = 904740619 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (904740653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 452370311 + 452370312.

It is an arithmetic number, because the mean of its divisors is an integer number (452370312).

Almost surely, 2^904740623 is an apocalyptic number.

904740623 is a deficient number, since it is larger than the sum of its proper divisors (1).

904740623 is an equidigital number, since it uses as much as digits as its factorization.

904740623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 904740623 is about 30078.9066124419. The cubic root of 904740623 is about 967.1816099190.

The spelling of 904740623 in words is "nine hundred four million, seven hundred forty thousand, six hundred twenty-three".