368637493 has 4 divisors (see below), whose sum is σ = 421300000. Its totient is φ = 315974988.

The previous prime is 368637443. The next prime is 368637499. The reversal of 368637493 is 394736863.

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, and also an emirpimes, since its reverse is a distinct semiprime: 394736863 = 541 ⋅729643.

It is not a de Polignac number, because 368637493 - 2⁹ = 368636981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (368637499) 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, 26331243 + ... + 26331256.

It is an arithmetic number, because the mean of its divisors is an integer number (105325000).

Almost surely, 2^368637493 is an apocalyptic number.

It is an amenable number.

368637493 is a deficient number, since it is larger than the sum of its proper divisors (52662507).

368637493 is an equidigital number, since it uses as much as digits as its factorization.

368637493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52662506.

The product of its digits is 1959552, while the sum is 49.

The square root of 368637493 is about 19199.9347134307. The cubic root of 368637493 is about 717.0231340285.

The spelling of 368637493 in words is "three hundred sixty-eight million, six hundred thirty-seven thousand, four hundred ninety-three".