74537897 has 8 divisors (see below), whose sum is σ = 85560000. Its totient is φ = 63609264.

The previous prime is 74537867. The next prime is 74537921. The reversal of 74537897 is 79873547.

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

It is a cyclic number.

It is not a de Polignac number, because 74537897 - 2¹⁶ = 74472361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74537867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21647 + ... + 24852.

It is an arithmetic number, because the mean of its divisors is an integer number (10695000).

Almost surely, 2^74537897 is an apocalyptic number.

It is an amenable number.

74537897 is a deficient number, since it is larger than the sum of its proper divisors (11022103).

74537897 is a wasteful number, since it uses less digits than its factorization.

74537897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46735.

The product of its digits is 1481760, while the sum is 50.

The square root of 74537897 is about 8633.5332859728. The cubic root of 74537897 is about 420.8484304575.

The spelling of 74537897 in words is "seventy-four million, five hundred thirty-seven thousand, eight hundred ninety-seven".