74826461 has 2 divisors, whose sum is σ = 74826462. Its totient is φ = 74826460.

The previous prime is 74826457. The next prime is 74826463. The reversal of 74826461 is 16462847.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73788100 + 1038361 = 8590^2 + 1019^2 .

It is an emirp because it is prime and its reverse (16462847) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74826461 - 2² = 74826457 is a prime.

Together with 74826463, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74826463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37413230 + 37413231.

It is an arithmetic number, because the mean of its divisors is an integer number (37413231).

Almost surely, 2^74826461 is an apocalyptic number.

74826461 is the 3869-th centered decagonal number.

It is an amenable number.

74826461 is a deficient number, since it is larger than the sum of its proper divisors (1).

74826461 is an equidigital number, since it uses as much as digits as its factorization.

74826461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64512, while the sum is 38.

The square root of 74826461 is about 8650.2289565075. The cubic root of 74826461 is about 421.3908182101.

The spelling of 74826461 in words is "seventy-four million, eight hundred twenty-six thousand, four hundred sixty-one".