72693403 has 6 divisors (see below), whose sum is σ = 73286556. Its totient is φ = 72105012.

The previous prime is 72693391. The next prime is 72693407. The reversal of 72693403 is 30439627.

It is not a de Polignac number, because 72693403 - 2¹³ = 72685211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72693407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13876 + ... + 18382.

It is an arithmetic number, because the mean of its divisors is an integer number (12214426).

Almost surely, 2^72693403 is an apocalyptic number.

72693403 is a deficient number, since it is larger than the sum of its proper divisors (593153).

72693403 is an equidigital number, since it uses as much as digits as its factorization.

72693403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4761 (or 4634 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 34.

The square root of 72693403 is about 8526.0426341885. The cubic root of 72693403 is about 417.3479968246.

The spelling of 72693403 in words is "seventy-two million, six hundred ninety-three thousand, four hundred three".