74729401 has 2 divisors, whose sum is σ = 74729402. Its totient is φ = 74729400.

The previous prime is 74729393. The next prime is 74729411. The reversal of 74729401 is 10492747.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72233001 + 2496400 = 8499^2 + 1580^2 .

It is an emirp because it is prime and its reverse (10492747) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74729401 - 2³ = 74729393 is a prime.

It is equal to p_4379371 and since 74729401 and 4379371 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (74729411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37364700 + 37364701.

It is an arithmetic number, because the mean of its divisors is an integer number (37364701).

Almost surely, 2^74729401 is an apocalyptic number.

It is an amenable number.

74729401 is a deficient number, since it is larger than the sum of its proper divisors (1).

74729401 is an equidigital number, since it uses as much as digits as its factorization.

74729401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 74729401 is about 8644.6168798854. The cubic root of 74729401 is about 421.2085391545.

The spelling of 74729401 in words is "seventy-four million, seven hundred twenty-nine thousand, four hundred one".