77401433 has 4 divisors (see below), whose sum is σ = 79048320. Its totient is φ = 75754548.

The previous prime is 77401427. The next prime is 77401453. The reversal of 77401433 is 33410477.

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 77401433 - 2¹⁰ = 77400409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77401396 and 77401405.

It is not an unprimeable number, because it can be changed into a prime (77401453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 823373 + ... + 823466.

It is an arithmetic number, because the mean of its divisors is an integer number (19762080).

Almost surely, 2^77401433 is an apocalyptic number.

It is an amenable number.

77401433 is a deficient number, since it is larger than the sum of its proper divisors (1646887).

77401433 is a wasteful number, since it uses less digits than its factorization.

77401433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1646886.

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 77401433 is about 8797.8084202829. The cubic root of 77401433 is about 426.1701235190.

The spelling of 77401433 in words is "seventy-seven million, four hundred one thousand, four hundred thirty-three".