90381403 has 8 divisors (see below), whose sum is σ = 103420160. Its totient is φ = 77374440.

The previous prime is 90381397. The next prime is 90381409. The reversal of 90381403 is 30418309.

It is an interprime number because it is at equal distance from previous prime (90381397) and next prime (90381409).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90381403 is a prime.

It is a super-3 number, since 3×90381403³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90381409) 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, 1503 + ... + 13528.

It is an arithmetic number, because the mean of its divisors is an integer number (12927520).

Almost surely, 2^90381403 is an apocalyptic number.

90381403 is the 6013-rd heptagonal number.

90381403 is a deficient number, since it is larger than the sum of its proper divisors (13038757).

90381403 is a wasteful number, since it uses less digits than its factorization.

90381403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15897.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 90381403 is about 9506.9134318137. The cubic root of 90381403 is about 448.7726274079.

The spelling of 90381403 in words is "ninety million, three hundred eighty-one thousand, four hundred three".