72477326 has 4 divisors (see below), whose sum is σ = 108715992. Its totient is φ = 36238662.

The previous prime is 72477283. The next prime is 72477331. The reversal of 72477326 is 62377427.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62377427 = 7 ⋅8911061.

It is a super-2 number, since 2×72477326² = 10505925568220552, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72477326.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 18119330 + ... + 18119333.

It is an arithmetic number, because the mean of its divisors is an integer number (27178998).

Almost surely, 2^72477326 is an apocalyptic number.

72477326 is a deficient number, since it is larger than the sum of its proper divisors (36238666).

72477326 is a wasteful number, since it uses less digits than its factorization.

72477326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36238665.

The product of its digits is 98784, while the sum is 38.

The square root of 72477326 is about 8513.3616157191. The cubic root of 72477326 is about 416.9340720475.

The spelling of 72477326 in words is "seventy-two million, four hundred seventy-seven thousand, three hundred twenty-six".