1672442347 has 2 divisors, whose sum is σ = 1672442348. Its totient is φ = 1672442346.

The previous prime is 1672442333. The next prime is 1672442351. The reversal of 1672442347 is 7432442761.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1672442347 is a prime.

It is not a weakly prime, because it can be changed into another prime (1672452347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836221173 + 836221174.

It is an arithmetic number, because the mean of its divisors is an integer number (836221174).

Almost surely, 2^1672442347 is an apocalyptic number.

1672442347 is a deficient number, since it is larger than the sum of its proper divisors (1).

1672442347 is an equidigital number, since it uses as much as digits as its factorization.

1672442347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 225792, while the sum is 40.

The square root of 1672442347 is about 40895.5052175664. The cubic root of 1672442347 is about 1186.9990877483. Note that the first 3 decimals are identical.

The spelling of 1672442347 in words is "one billion, six hundred seventy-two million, four hundred forty-two thousand, three hundred forty-seven".