72461493 has 32 divisors (see below), whose sum is σ = 118321280. Its totient is φ = 43545600.

The previous prime is 72461491. The next prime is 72461507. The reversal of 72461493 is 39416427.

It is not a de Polignac number, because 72461493 - 2¹ = 72461491 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72461491) 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 31 ways as a sum of consecutive naturals, for example, 12693 + ... + 17493.

It is an arithmetic number, because the mean of its divisors is an integer number (3697540).

Almost surely, 2^72461493 is an apocalyptic number.

It is an amenable number.

72461493 is a deficient number, since it is larger than the sum of its proper divisors (45859787).

72461493 is a wasteful number, since it uses less digits than its factorization.

72461493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4866 (or 4860 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 72461493 is about 8512.4316737346. The cubic root of 72461493 is about 416.9037094579.

The spelling of 72461493 in words is "seventy-two million, four hundred sixty-one thousand, four hundred ninety-three".