1672872369 has 16 divisors (see below), whose sum is σ = 2699088768. Its totient is φ = 899695872.

The previous prime is 1672872361. The next prime is 1672872373. The reversal of 1672872369 is 9632782761.

It is not a de Polignac number, because 1672872369 - 2³ = 1672872361 is a prime.

It is a super-2 number, since 2×1672872369² = 5597003925927344322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1672872361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2342602 + ... + 2343315.

It is an arithmetic number, because the mean of its divisors is an integer number (168693048).

Almost surely, 2^1672872369 is an apocalyptic number.

It is an amenable number.

1672872369 is a deficient number, since it is larger than the sum of its proper divisors (1026216399).

1672872369 is a wasteful number, since it uses less digits than its factorization.

1672872369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4685944.

The product of its digits is 1524096, while the sum is 51.

The square root of 1672872369 is about 40900.7624501060. The cubic root of 1672872369 is about 1187.1008136226.

The spelling of 1672872369 in words is "one billion, six hundred seventy-two million, eight hundred seventy-two thousand, three hundred sixty-nine".