1674731797 has 8 divisors (see below), whose sum is σ = 1719352152. Its totient is φ = 1630291200.

The previous prime is 1674731783. The next prime is 1674731809. The reversal of 1674731797 is 7971374761.

It can be written as a sum of positive squares in 4 ways, for example, as 367236 + 1674364561 = 606^2 + 40919^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-1674731797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1674732797) 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, 25954 + ... + 63427.

It is an arithmetic number, because the mean of its divisors is an integer number (214919019).

Almost surely, 2^1674731797 is an apocalyptic number.

It is an amenable number.

1674731797 is a deficient number, since it is larger than the sum of its proper divisors (44620355).

1674731797 is an equidigital number, since it uses as much as digits as its factorization.

1674731797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89879.

The product of its digits is 1555848, while the sum is 52.

The square root of 1674731797 is about 40923.4871070392. The cubic root of 1674731797 is about 1187.5404787975.

The spelling of 1674731797 in words is "one billion, six hundred seventy-four million, seven hundred thirty-one thousand, seven hundred ninety-seven".