427394099 has 4 divisors (see below), whose sum is σ = 466248120. Its totient is φ = 388540080.

The previous prime is 427394087. The next prime is 427394101. The reversal of 427394099 is 990493724.

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 427394099 - 2¹² = 427390003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427394039) 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, 19426994 + ... + 19427015.

It is an arithmetic number, because the mean of its divisors is an integer number (116562030).

Almost surely, 2^427394099 is an apocalyptic number.

427394099 is a deficient number, since it is larger than the sum of its proper divisors (38854021).

427394099 is a wasteful number, since it uses less digits than its factorization.

427394099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38854020.

The product of its (nonzero) digits is 489888, while the sum is 47.

The square root of 427394099 is about 20673.5120141692. The cubic root of 427394099 is about 753.2564177134.

The spelling of 427394099 in words is "four hundred twenty-seven million, three hundred ninety-four thousand, ninety-nine".