622951 has 4 divisors (see below), whose sum is σ = 711952. Its totient is φ = 533952.

The previous prime is 622943. The next prime is 622957. The reversal of 622951 is 159226.

622951 = T₂₃₃ + T₂₃₄ + ... + T₂₅₃.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 159226 = 2 ⋅79613.

It is a cyclic number.

It is not a de Polignac number, because 622951 - 2³ = 622943 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 (622957) 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, 44490 + ... + 44503.

It is an arithmetic number, because the mean of its divisors is an integer number (177988).

2⁶²²⁹⁵¹ is an apocalyptic number.

622951 is a deficient number, since it is larger than the sum of its proper divisors (89001).

622951 is an equidigital number, since it uses as much as digits as its factorization.

622951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89000.

The product of its digits is 1080, while the sum is 25.

The square root of 622951 is about 789.2724497916. The cubic root of 622951 is about 85.4052619581.

The spelling of 622951 in words is "six hundred twenty-two thousand, nine hundred fifty-one".