74697401 has 2 divisors, whose sum is σ = 74697402. Its totient is φ = 74697400.

The previous prime is 74697377. The next prime is 74697409. The reversal of 74697401 is 10479647.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45914176 + 28783225 = 6776^2 + 5365^2 .

It is an emirp because it is prime and its reverse (10479647) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74697401 is a prime.

It is not a weakly prime, because it can be changed into another prime (74697409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37348700 + 37348701.

It is an arithmetic number, because the mean of its divisors is an integer number (37348701).

Almost surely, 2^74697401 is an apocalyptic number.

It is an amenable number.

74697401 is a deficient number, since it is larger than the sum of its proper divisors (1).

74697401 is an equidigital number, since it uses as much as digits as its factorization.

74697401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 74697401 is about 8642.7658188800. The cubic root of 74697401 is about 421.1484084365.

The spelling of 74697401 in words is "seventy-four million, six hundred ninety-seven thousand, four hundred one".