671367401 has 4 divisors (see below), whose sum is σ = 700557312. Its totient is φ = 642177492.

The previous prime is 671367391. The next prime is 671367427. The reversal of 671367401 is 104763176.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 671367401 - 2¹⁴ = 671351017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (671327401) 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, 14594921 + ... + 14594966.

It is an arithmetic number, because the mean of its divisors is an integer number (175139328).

Almost surely, 2^671367401 is an apocalyptic number.

It is an amenable number.

671367401 is a deficient number, since it is larger than the sum of its proper divisors (29189911).

671367401 is a wasteful number, since it uses less digits than its factorization.

671367401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29189910.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 671367401 is about 25910.7584026404. The cubic root of 671367401 is about 875.6288925381.

The spelling of 671367401 in words is "six hundred seventy-one million, three hundred sixty-seven thousand, four hundred one".