387493241 has 4 divisors (see below), whose sum is σ = 389501172. Its totient is φ = 385485312.

The previous prime is 387493237. The next prime is 387493279. The reversal of 387493241 is 142394783.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 142394783 = 281 ⋅506743.

It can be written as a sum of positive squares in 2 ways, for example, as 130051216 + 257442025 = 11404^2 + 16045^2 .

It is a cyclic number.

It is not a de Polignac number, because 387493241 - 2² = 387493237 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (387493541) 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, 1003676 + ... + 1004061.

It is an arithmetic number, because the mean of its divisors is an integer number (97375293).

Almost surely, 2^387493241 is an apocalyptic number.

It is an amenable number.

387493241 is a deficient number, since it is larger than the sum of its proper divisors (2007931).

387493241 is a wasteful number, since it uses less digits than its factorization.

387493241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2007930.

The product of its digits is 145152, while the sum is 41.

The square root of 387493241 is about 19684.8480055092. The cubic root of 387493241 is about 729.0456290517.

The spelling of 387493241 in words is "three hundred eighty-seven million, four hundred ninety-three thousand, two hundred forty-one".