72454667 has 4 divisors (see below), whose sum is σ = 74221896. Its totient is φ = 70687440.

The previous prime is 72454661. The next prime is 72454687. The reversal of 72454667 is 76645427.

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

It is a cyclic number.

It is not a de Polignac number, because 72454667 - 2¹⁴ = 72438283 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 1767187 = 72454667 / (7 + 2 + 4 + 5 + 4 + 6 + 6 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72454661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 883553 + ... + 883634.

It is an arithmetic number, because the mean of its divisors is an integer number (18555474).

Almost surely, 2^72454667 is an apocalyptic number.

72454667 is a deficient number, since it is larger than the sum of its proper divisors (1767229).

72454667 is a wasteful number, since it uses less digits than its factorization.

72454667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1767228.

The product of its digits is 282240, while the sum is 41.

The square root of 72454667 is about 8512.0307212791. The cubic root of 72454667 is about 416.8906180261.

The spelling of 72454667 in words is "seventy-two million, four hundred fifty-four thousand, six hundred sixty-seven".