72603494 has 4 divisors (see below), whose sum is σ = 108905244. Its totient is φ = 36301746.

The previous prime is 72603473. The next prime is 72603521. The reversal of 72603494 is 49430627.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49430627 = 103 ⋅479909.

It is a super-3 number, since 3×72603494³ (a number of 25 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18150872 + ... + 18150875.

It is an arithmetic number, because the mean of its divisors is an integer number (27226311).

Almost surely, 2^72603494 is an apocalyptic number.

72603494 is a deficient number, since it is larger than the sum of its proper divisors (36301750).

72603494 is a wasteful number, since it uses less digits than its factorization.

72603494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36301749.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 72603494 is about 8520.7683925806. The cubic root of 72603494 is about 417.1758637283.

The spelling of 72603494 in words is "seventy-two million, six hundred three thousand, four hundred ninety-four".