77272406 has 8 divisors (see below), whose sum is σ = 116238024. Its totient is φ = 38526400.

The previous prime is 77272397. The next prime is 77272423. The reversal of 77272406 is 60427277.

It is a sphenic number, since it is the product of 3 distinct primes.

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 in 3 ways as a sum of consecutive naturals, for example, 54020 + ... + 55431.

It is an arithmetic number, because the mean of its divisors is an integer number (14529753).

Almost surely, 2^77272406 is an apocalyptic number.

77272406 is a deficient number, since it is larger than the sum of its proper divisors (38965618).

77272406 is a wasteful number, since it uses less digits than its factorization.

77272406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109806.

The product of its (nonzero) digits is 32928, while the sum is 35.

The square root of 77272406 is about 8790.4724560174. The cubic root of 77272406 is about 425.9331854627.

The spelling of 77272406 in words is "seventy-seven million, two hundred seventy-two thousand, four hundred six".