74906197 has 2 divisors, whose sum is σ = 74906198. Its totient is φ = 74906196.

The previous prime is 74906179. The next prime is 74906243. The reversal of 74906197 is 79160947.

It is a happy number.

Together with previous prime (74906179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74753316 + 152881 = 8646^2 + 391^2 .

It is an emirp because it is prime and its reverse (79160947) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74906197 - 2¹¹ = 74904149 is a prime.

It is a super-2 number, since 2×74906197² = 11221876698005618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74906177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37453098 + 37453099.

It is an arithmetic number, because the mean of its divisors is an integer number (37453099).

Almost surely, 2^74906197 is an apocalyptic number.

It is an amenable number.

74906197 is a deficient number, since it is larger than the sum of its proper divisors (1).

74906197 is an equidigital number, since it uses as much as digits as its factorization.

74906197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 74906197 is about 8654.8366246856. The cubic root of 74906197 is about 421.5404448262.

The spelling of 74906197 in words is "seventy-four million, nine hundred six thousand, one hundred ninety-seven".