387216963 has 36 divisors (see below), whose sum is σ = 668548440. Its totient is φ = 220857840.

The previous prime is 387216911. The next prime is 387216967. The reversal of 387216963 is 369612783.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is not a de Polignac number, because 387216963 - 2⁶ = 387216899 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (387216967) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 715473 + ... + 716013.

It is an arithmetic number, because the mean of its divisors is an integer number (18570790).

Almost surely, 2^387216963 is an apocalyptic number.

387216963 is a deficient number, since it is larger than the sum of its proper divisors (281331477).

387216963 is an frugal number, since it uses more digits than its factorization.

387216963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105 (or 551 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 387216963 is about 19677.8292247900. The cubic root of 387216963 is about 728.8723209473.

The spelling of 387216963 in words is "three hundred eighty-seven million, two hundred sixteen thousand, nine hundred sixty-three".