1672442297 has 4 divisors (see below), whose sum is σ = 1676655396. Its totient is φ = 1668229200.

The previous prime is 1672442257. The next prime is 1672442311. The reversal of 1672442297 is 7922442761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7922442761 = 317 ⋅24991933.

It can be written as a sum of positive squares in 2 ways, for example, as 1470262336 + 202179961 = 38344^2 + 14219^2 .

It is a cyclic number.

It is not a de Polignac number, because 1672442297 - 2²⁰ = 1671393721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1672442237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2105954 + ... + 2106747.

It is an arithmetic number, because the mean of its divisors is an integer number (419163849).

Almost surely, 2^1672442297 is an apocalyptic number.

It is an amenable number.

1672442297 is a deficient number, since it is larger than the sum of its proper divisors (4213099).

1672442297 is an equidigital number, since it uses as much as digits as its factorization.

1672442297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4213098.

The product of its digits is 338688, while the sum is 44.

The square root of 1672442297 is about 40895.5046062523. The cubic root of 1672442297 is about 1186.9990759193. Note that the first 3 decimals are identical.

The spelling of 1672442297 in words is "one billion, six hundred seventy-two million, four hundred forty-two thousand, two hundred ninety-seven".