381562077 has 16 divisors (see below), whose sum is σ = 566778240. Its totient is φ = 226709952.

The previous prime is 381562067. The next prime is 381562081. The reversal of 381562077 is 770265183.

It is not a de Polignac number, because 381562077 - 2²⁰ = 380513501 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381562007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167553 + ... + 169814.

It is an arithmetic number, because the mean of its divisors is an integer number (35423640).

Almost surely, 2^381562077 is an apocalyptic number.

It is an amenable number.

381562077 is a deficient number, since it is larger than the sum of its proper divisors (185216163).

381562077 is a wasteful number, since it uses less digits than its factorization.

381562077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337412.

The product of its (nonzero) digits is 70560, while the sum is 39.

The square root of 381562077 is about 19533.6140281311. The cubic root of 381562077 is about 725.3067759199.

The spelling of 381562077 in words is "three hundred eighty-one million, five hundred sixty-two thousand, seventy-seven".