387034403 has 8 divisors (see below), whose sum is σ = 442776672. Its totient is φ = 331405056.

The previous prime is 387034399. The next prime is 387034423. The reversal of 387034403 is 304430783.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 387034403 - 2² = 387034399 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 387034403.

It is not an unprimeable number, because it can be changed into a prime (387034423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20750 + ... + 34707.

It is an arithmetic number, because the mean of its divisors is an integer number (55347084).

Almost surely, 2^387034403 is an apocalyptic number.

387034403 is a deficient number, since it is larger than the sum of its proper divisors (55742269).

387034403 is an equidigital number, since it uses as much as digits as its factorization.

387034403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56461.

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 387034403 is about 19673.1899548599. The cubic root of 387034403 is about 728.7577565380.

The spelling of 387034403 in words is "three hundred eighty-seven million, thirty-four thousand, four hundred three".