73738457 has 4 divisors (see below), whose sum is σ = 79410660. Its totient is φ = 68066256.

The previous prime is 73738433. The next prime is 73738471. The reversal of 73738457 is 75483737.

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

It can be written as a sum of positive squares in 2 ways, for example, as 28526281 + 45212176 = 5341^2 + 6724^2 .

It is a cyclic number.

It is not a de Polignac number, because 73738457 - 2¹⁴ = 73722073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73738477) 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, 2836082 + ... + 2836107.

It is an arithmetic number, because the mean of its divisors is an integer number (19852665).

Almost surely, 2^73738457 is an apocalyptic number.

It is an amenable number.

73738457 is a deficient number, since it is larger than the sum of its proper divisors (5672203).

73738457 is a wasteful number, since it uses less digits than its factorization.

73738457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5672202.

The product of its digits is 493920, while the sum is 44.

The square root of 73738457 is about 8587.1099329169. The cubic root of 73738457 is about 419.3384464221.

The spelling of 73738457 in words is "seventy-three million, seven hundred thirty-eight thousand, four hundred fifty-seven".