74649293 has 2 divisors, whose sum is σ = 74649294. Its totient is φ = 74649292.

The previous prime is 74649259. The next prime is 74649307. The reversal of 74649293 is 39294647.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64995844 + 9653449 = 8062^2 + 3107^2 .

It is a cyclic number.

It is not a de Polignac number, because 74649293 - 2⁶ = 74649229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74649593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37324646 + 37324647.

It is an arithmetic number, because the mean of its divisors is an integer number (37324647).

Almost surely, 2^74649293 is an apocalyptic number.

It is an amenable number.

74649293 is a deficient number, since it is larger than the sum of its proper divisors (1).

74649293 is an equidigital number, since it uses as much as digits as its factorization.

74649293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 44.

The square root of 74649293 is about 8639.9822337780. The cubic root of 74649293 is about 421.0579770941.

The spelling of 74649293 in words is "seventy-four million, six hundred forty-nine thousand, two hundred ninety-three".