673557031 has 16 divisors (see below), whose sum is σ = 789136128. Its totient is φ = 562867200.

The previous prime is 673557029. The next prime is 673557041. The reversal of 673557031 is 130755376.

It is a happy number.

It is not a de Polignac number, because 673557031 - 2¹ = 673557029 is a prime.

It is a super-2 number, since 2×673557031² = 907358148019069922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673557041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191196 + ... + 194686.

It is an arithmetic number, because the mean of its divisors is an integer number (49321008).

Almost surely, 2^673557031 is an apocalyptic number.

673557031 is a deficient number, since it is larger than the sum of its proper divisors (115579097).

673557031 is a wasteful number, since it uses less digits than its factorization.

673557031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4182.

The product of its (nonzero) digits is 66150, while the sum is 37.

The square root of 673557031 is about 25952.9773051186. The cubic root of 673557031 is about 876.5797989333.

The spelling of 673557031 in words is "six hundred seventy-three million, five hundred fifty-seven thousand, thirty-one".