631876445 has 16 divisors (see below), whose sum is σ = 802794240. Its totient is φ = 476115264.

The previous prime is 631876439. The next prime is 631876463. The reversal of 631876445 is 544678136.

It is a cyclic number.

It is not a de Polignac number, because 631876445 - 2⁶ = 631876381 is a prime.

It is a super-3 number, since 3×631876445³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 631876396 and 631876405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2789 + ... + 35658.

It is an arithmetic number, because the mean of its divisors is an integer number (50174640).

Almost surely, 2^631876445 is an apocalyptic number.

It is an amenable number.

631876445 is a deficient number, since it is larger than the sum of its proper divisors (170917795).

631876445 is a wasteful number, since it uses less digits than its factorization.

631876445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38644.

The product of its digits is 483840, while the sum is 44.

The square root of 631876445 is about 25137.1526828318. The cubic root of 631876445 is about 858.1121582596.

The spelling of 631876445 in words is "six hundred thirty-one million, eight hundred seventy-six thousand, four hundred forty-five".