374215993 has 2 divisors, whose sum is σ = 374215994. Its totient is φ = 374215992.

The previous prime is 374215991. The next prime is 374216069. The reversal of 374215993 is 399512473.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 366990649 + 7225344 = 19157^2 + 2688^2 .

It is an emirp because it is prime and its reverse (399512473) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 374215993 - 2¹ = 374215991 is a prime.

Together with 374215991, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (374215991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 187107996 + 187107997.

It is an arithmetic number, because the mean of its divisors is an integer number (187107997).

Almost surely, 2^374215993 is an apocalyptic number.

It is an amenable number.

374215993 is a deficient number, since it is larger than the sum of its proper divisors (1).

374215993 is an equidigital number, since it uses as much as digits as its factorization.

374215993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 204120, while the sum is 43.

The square root of 374215993 is about 19344.6631658450. The cubic root of 374215993 is about 720.6218861856.

The spelling of 374215993 in words is "three hundred seventy-four million, two hundred fifteen thousand, nine hundred ninety-three".