66903004 has 24 divisors (see below), whose sum is σ = 134489600. Its totient is φ = 28526256.

The previous prime is 66902989. The next prime is 66903019. The reversal of 66903004 is 40030966.

It is an interprime number because it is at equal distance from previous prime (66902989) and next prime (66903019).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 432 + ... + 11575.

Almost surely, 2^66903004 is an apocalyptic number.

It is an amenable number.

66903004 is an abundant number, since it is smaller than the sum of its proper divisors (67586596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66903004 is a wasteful number, since it uses less digits than its factorization.

66903004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12217 (or 12215 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 66903004 is about 8179.4256522081. The cubic root of 66903004 is about 405.9587184118.

The spelling of 66903004 in words is "sixty-six million, nine hundred three thousand, four".