814671401 has 4 divisors (see below), whose sum is σ = 814728900. Its totient is φ = 814613904.

The previous prime is 814671373. The next prime is 814671443. The reversal of 814671401 is 104176418.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 368448025 + 446223376 = 19195^2 + 21124^2 .

It is a cyclic number.

It is not a de Polignac number, because 814671401 - 2¹⁰ = 814670377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (814671461) 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, 9215 + ... + 41403.

It is an arithmetic number, because the mean of its divisors is an integer number (203682225).

Almost surely, 2^814671401 is an apocalyptic number.

It is an amenable number.

814671401 is a deficient number, since it is larger than the sum of its proper divisors (57499).

814671401 is a wasteful number, since it uses less digits than its factorization.

814671401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57498.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 814671401 is about 28542.4491065501. The cubic root of 814671401 is about 933.9583091191.

The spelling of 814671401 in words is "eight hundred fourteen million, six hundred seventy-one thousand, four hundred one".