371999985 has 32 divisors (see below), whose sum is σ = 681000960. Its totient is φ = 169864128.

The previous prime is 371999983. The next prime is 372000007. The reversal of 371999985 is 589999173.

It is not a de Polignac number, because 371999985 - 2¹ = 371999983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (371999983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135456 + ... + 138174.

It is an arithmetic number, because the mean of its divisors is an integer number (21281280).

Almost surely, 2^371999985 is an apocalyptic number.

371999985 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

371999985 is a deficient number, since it is larger than the sum of its proper divisors (309000975).

371999985 is a wasteful number, since it uses less digits than its factorization.

371999985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4037.

The product of its digits is 5511240, while the sum is 60.

The square root of 371999985 is about 19287.3011331290. The cubic root of 371999985 is about 719.1966251482.

The spelling of 371999985 in words is "three hundred seventy-one million, nine hundred ninety-nine thousand, nine hundred eighty-five".