614990401 has 3 divisors (see below), whose sum is σ = 615015201. Its totient is φ = 614965602.

The previous prime is 614990393. The next prime is 614990407. The reversal of 614990401 is 104099416.

The square root of 614990401 is 24799.

It is a perfect power (a square), and thus also a powerful number.

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 is not a de Polignac number, because 614990401 - 2³ = 614990393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (614990407) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 12400 + ... + 37198.

It is an arithmetic number, because the mean of its divisors is an integer number (205005067).

Almost surely, 2^614990401 is an apocalyptic number.

614990401 is the 24799-th square number.

614990401 is the 12400-th centered octagonal number.

It is an amenable number.

614990401 is a deficient number, since it is larger than the sum of its proper divisors (24800).

614990401 is an frugal number, since it uses more digits than its factorization.

614990401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49598 (or 24799 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The cubic root of 614990401 is about 850.3990748888.

The spelling of 614990401 in words is "six hundred fourteen million, nine hundred ninety thousand, four hundred one".