74699533 has 2 divisors, whose sum is σ = 74699534. Its totient is φ = 74699532.

The previous prime is 74699519. The next prime is 74699543. The reversal of 74699533 is 33599647.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38663524 + 36036009 = 6218^2 + 6003^2 .

It is an emirp because it is prime and its reverse (33599647) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74699533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74699543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37349766 + 37349767.

It is an arithmetic number, because the mean of its divisors is an integer number (37349767).

Almost surely, 2^74699533 is an apocalyptic number.

It is an amenable number.

74699533 is a deficient number, since it is larger than the sum of its proper divisors (1).

74699533 is an equidigital number, since it uses as much as digits as its factorization.

74699533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 612360, while the sum is 46.

The square root of 74699533 is about 8642.8891581461. The cubic root of 74699533 is about 421.1524151795.

The spelling of 74699533 in words is "seventy-four million, six hundred ninety-nine thousand, five hundred thirty-three".