1674597421 has 8 divisors (see below), whose sum is σ = 1916735040. Its totient is φ = 1433187168.

The previous prime is 1674597403. The next prime is 1674597469. The reversal of 1674597421 is 1247954761.

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

It is not a de Polignac number, because 1674597421 - 2¹⁵ = 1674564653 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 (1674597521) 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, 176896 + ... + 186121.

It is an arithmetic number, because the mean of its divisors is an integer number (239591880).

Almost surely, 2^1674597421 is an apocalyptic number.

It is an amenable number.

1674597421 is a deficient number, since it is larger than the sum of its proper divisors (242137619).

1674597421 is an equidigital number, since it uses as much as digits as its factorization.

1674597421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363683.

The product of its digits is 423360, while the sum is 46.

The square root of 1674597421 is about 40921.8452785306. The cubic root of 1674597421 is about 1187.5087162574.

The spelling of 1674597421 in words is "one billion, six hundred seventy-four million, five hundred ninety-seven thousand, four hundred twenty-one".