1674090091 has 4 divisors (see below), whose sum is σ = 1676452000. Its totient is φ = 1671728184.

The previous prime is 1674090059. The next prime is 1674090101. The reversal of 1674090091 is 1900904761.

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 1674090091 - 2⁵ = 1674090059 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1674090091.

It is not an unprimeable number, because it can be changed into a prime (1674090001) 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, 1179891 + ... + 1181308.

It is an arithmetic number, because the mean of its divisors is an integer number (419113000).

Almost surely, 2^1674090091 is an apocalyptic number.

1674090091 is a deficient number, since it is larger than the sum of its proper divisors (2361909).

1674090091 is an equidigital number, since it uses as much as digits as its factorization.

1674090091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2361908.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 1674090091 is about 40915.6460415817. The cubic root of 1674090091 is about 1187.3887830246.

The spelling of 1674090091 in words is "one billion, six hundred seventy-four million, ninety thousand, ninety-one".