72473475 has 12 divisors (see below), whose sum is σ = 119822936. Its totient is φ = 38652480.

The previous prime is 72473473. The next prime is 72473477. The reversal of 72473475 is 57437427.

It is an interprime number because it is at equal distance from previous prime (72473473) and next prime (72473477).

It is not a de Polignac number, because 72473475 - 2¹ = 72473473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72473473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 483082 + ... + 483231.

Almost surely, 2^72473475 is an apocalyptic number.

72473475 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

72473475 is a deficient number, since it is larger than the sum of its proper divisors (47349461).

72473475 is a wasteful number, since it uses less digits than its factorization.

72473475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966326 (or 966321 counting only the distinct ones).

The product of its digits is 164640, while the sum is 39.

The square root of 72473475 is about 8513.1354388380. The cubic root of 72473475 is about 416.9266874781.

The spelling of 72473475 in words is "seventy-two million, four hundred seventy-three thousand, four hundred seventy-five".