75806401 has 4 divisors (see below), whose sum is σ = 82697904. Its totient is φ = 68914900.

The previous prime is 75806369. The next prime is 75806431. The reversal of 75806401 is 10460857.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 75806401 - 2⁵ = 75806369 is a prime.

It is a super-2 number, since 2×75806401² = 11493220865145602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75806431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3445735 + ... + 3445756.

It is an arithmetic number, because the mean of its divisors is an integer number (20674476).

Almost surely, 2^75806401 is an apocalyptic number.

It is an amenable number.

75806401 is a deficient number, since it is larger than the sum of its proper divisors (6891503).

75806401 is a wasteful number, since it uses less digits than its factorization.

75806401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6891502.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 75806401 is about 8706.6871426508. The cubic root of 75806401 is about 423.2223810054. Note that the first 3 decimals are identical.

The spelling of 75806401 in words is "seventy-five million, eight hundred six thousand, four hundred one".