1672205631 has 8 divisors (see below), whose sum is σ = 2262885504. Its totient is φ = 1098164760.

The previous prime is 1672205617. The next prime is 1672205641. The reversal of 1672205631 is 1365022761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1672205631 - 2⁶ = 1672205567 is a prime.

It is a super-2 number, since 2×1672205631² = 5592543344696216322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1672205592 and 1672205601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1672205641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4159515 + ... + 4159916.

It is an arithmetic number, because the mean of its divisors is an integer number (282860688).

Almost surely, 2^1672205631 is an apocalyptic number.

1672205631 is a deficient number, since it is larger than the sum of its proper divisors (590679873).

1672205631 is an equidigital number, since it uses as much as digits as its factorization.

1672205631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8319501.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 1672205631 is about 40892.6109584605. The cubic root of 1672205631 is about 1186.9430828414.

The spelling of 1672205631 in words is "one billion, six hundred seventy-two million, two hundred five thousand, six hundred thirty-one".