381203877 has 4 divisors (see below), whose sum is σ = 508271840. Its totient is φ = 254135916.

The previous prime is 381203861. The next prime is 381203917. The reversal of 381203877 is 778302183.

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.

It is not a de Polignac number, because 381203877 - 2⁴ = 381203861 is a prime.

It is a super-2 number, since 2×381203877² = 290632791679662258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381203857) 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, 63533977 + ... + 63533982.

It is an arithmetic number, because the mean of its divisors is an integer number (127067960).

Almost surely, 2^381203877 is an apocalyptic number.

It is an amenable number.

381203877 is a deficient number, since it is larger than the sum of its proper divisors (127067963).

381203877 is a wasteful number, since it uses less digits than its factorization.

381203877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127067962.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 381203877 is about 19524.4430650403. The cubic root of 381203877 is about 725.0797388317.

The spelling of 381203877 in words is "three hundred eighty-one million, two hundred three thousand, eight hundred seventy-seven".