361804397 has 4 divisors (see below), whose sum is σ = 362749440. Its totient is φ = 360859356.

The previous prime is 361804367. The next prime is 361804409. The reversal of 361804397 is 793408163.

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: 793408163 = 149 ⋅5324887.

It is a cyclic number.

It is not a de Polignac number, because 361804397 - 2¹² = 361800301 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 (361804337) 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, 471947 + ... + 472712.

It is an arithmetic number, because the mean of its divisors is an integer number (90687360).

Almost surely, 2^361804397 is an apocalyptic number.

It is an amenable number.

361804397 is a deficient number, since it is larger than the sum of its proper divisors (945043).

361804397 is an equidigital number, since it uses as much as digits as its factorization.

361804397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945042.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 361804397 is about 19021.1565631536. The cubic root of 361804397 is about 712.5652080260.

The spelling of 361804397 in words is "three hundred sixty-one million, eight hundred four thousand, three hundred ninety-seven".