623491262 has 4 divisors (see below), whose sum is σ = 935236896. Its totient is φ = 311745630.

The previous prime is 623491261. The next prime is 623491273. The reversal of 623491262 is 262194326.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 262194326 = 2 ⋅131097163.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623491261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155872814 + ... + 155872817.

It is an arithmetic number, because the mean of its divisors is an integer number (233809224).

Almost surely, 2^623491262 is an apocalyptic number.

623491262 is a deficient number, since it is larger than the sum of its proper divisors (311745634).

623491262 is a wasteful number, since it uses less digits than its factorization.

623491262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311745633.

The product of its digits is 31104, while the sum is 35.

The square root of 623491262 is about 24969.8070076643. The cubic root of 623491262 is about 854.2994441581.

The spelling of 623491262 in words is "six hundred twenty-three million, four hundred ninety-one thousand, two hundred sixty-two".