371399921 has 8 divisors (see below), whose sum is σ = 374514624. Its totient is φ = 368298640.

The previous prime is 371399909. The next prime is 371399939. The reversal of 371399921 is 129993173.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 371399921 - 2¹⁰ = 371398897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (371398921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56591 + ... + 62811.

It is an arithmetic number, because the mean of its divisors is an integer number (46814328).

Almost surely, 2^371399921 is an apocalyptic number.

It is an amenable number.

371399921 is a deficient number, since it is larger than the sum of its proper divisors (3114703).

371399921 is a wasteful number, since it uses less digits than its factorization.

371399921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6711.

The product of its digits is 91854, while the sum is 44.

The square root of 371399921 is about 19271.7389199833. The cubic root of 371399921 is about 718.8097109209.

The spelling of 371399921 in words is "three hundred seventy-one million, three hundred ninety-nine thousand, nine hundred twenty-one".