1673628427 has 4 divisors (see below), whose sum is σ = 1772077176. Its totient is φ = 1575179680.

The previous prime is 1673628389. The next prime is 1673628431. The reversal of 1673628427 is 7248263761.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1673628427 - 2¹¹ = 1673626379 is a prime.

It is a super-2 number, since 2×1673628427² = 5602064223324988658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1673628457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49224349 + ... + 49224382.

It is an arithmetic number, because the mean of its divisors is an integer number (443019294).

Almost surely, 2^1673628427 is an apocalyptic number.

1673628427 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1673628427 is a deficient number, since it is larger than the sum of its proper divisors (98448749).

1673628427 is an equidigital number, since it uses as much as digits as its factorization.

1673628427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98448748.

The product of its digits is 677376, while the sum is 46.

The square root of 1673628427 is about 40910.0039965777. The cubic root of 1673628427 is about 1187.2796242133.

The spelling of 1673628427 in words is "one billion, six hundred seventy-three million, six hundred twenty-eight thousand, four hundred twenty-seven".