622635497 has 4 divisors (see below), whose sum is σ = 679238736. Its totient is φ = 566032260.

The previous prime is 622635487. The next prime is 622635499. The reversal of 622635497 is 794536226.

622635497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-622635497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (622635499) 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, 28301603 + ... + 28301624.

It is an arithmetic number, because the mean of its divisors is an integer number (169809684).

Almost surely, 2^622635497 is an apocalyptic number.

It is an amenable number.

622635497 is a deficient number, since it is larger than the sum of its proper divisors (56603239).

622635497 is a wasteful number, since it uses less digits than its factorization.

622635497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56603238.

The product of its digits is 544320, while the sum is 44.

The square root of 622635497 is about 24952.6651281982. The cubic root of 622635497 is about 853.9084125903.

The spelling of 622635497 in words is "six hundred twenty-two million, six hundred thirty-five thousand, four hundred ninety-seven".