72477374 has 4 divisors (see below), whose sum is σ = 108716064. Its totient is φ = 36238686.

The previous prime is 72477373. The next prime is 72477401. The reversal of 72477374 is 47377427.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72477371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18119342 + ... + 18119345.

It is an arithmetic number, because the mean of its divisors is an integer number (27179016).

Almost surely, 2^72477374 is an apocalyptic number.

72477374 is a deficient number, since it is larger than the sum of its proper divisors (36238690).

72477374 is a wasteful number, since it uses less digits than its factorization.

72477374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36238689.

The product of its digits is 230496, while the sum is 41.

The square root of 72477374 is about 8513.3644348166. The cubic root of 72477374 is about 416.9341640893.

The spelling of 72477374 in words is "seventy-two million, four hundred seventy-seven thousand, three hundred seventy-four".