381792707 has 4 divisors (see below), whose sum is σ = 401887080. Its totient is φ = 361698336.

The previous prime is 381792673. The next prime is 381792721. The reversal of 381792707 is 707297183.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 707297183 = 11731 ⋅60293.

It is a cyclic number.

It is not a de Polignac number, because 381792707 - 2²⁰ = 380744131 is a prime.

It is a super-2 number, since 2×381792707² = 291531342236775698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381792737) 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, 10047158 + ... + 10047195.

It is an arithmetic number, because the mean of its divisors is an integer number (100471770).

Almost surely, 2^381792707 is an apocalyptic number.

381792707 is a deficient number, since it is larger than the sum of its proper divisors (20094373).

381792707 is a wasteful number, since it uses less digits than its factorization.

381792707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20094372.

The product of its (nonzero) digits is 148176, while the sum is 44.

The square root of 381792707 is about 19539.5165498024. The cubic root of 381792707 is about 725.4528804205.

The spelling of 381792707 in words is "three hundred eighty-one million, seven hundred ninety-two thousand, seven hundred seven".