368429993 has 4 divisors (see below), whose sum is σ = 370281600. Its totient is φ = 366578388.

The previous prime is 368429981. The next prime is 368430017. The reversal of 368429993 is 399924863.

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 368429993 - 2²⁶ = 301321129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (368429903) 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, 925505 + ... + 925902.

It is an arithmetic number, because the mean of its divisors is an integer number (92570400).

Almost surely, 2^368429993 is an apocalyptic number.

It is an amenable number.

368429993 is a deficient number, since it is larger than the sum of its proper divisors (1851607).

368429993 is a wasteful number, since it uses less digits than its factorization.

368429993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1851606.

The product of its digits is 2519424, while the sum is 53.

The square root of 368429993 is about 19194.5302886004. The cubic root of 368429993 is about 716.8885752569. Note that the first 3 decimals are identical.

The spelling of 368429993 in words is "three hundred sixty-eight million, four hundred twenty-nine thousand, nine hundred ninety-three".