76045389 has 16 divisors (see below), whose sum is σ = 118345728. Its totient is φ = 42529392.

The previous prime is 76045367. The next prime is 76045393. The reversal of 76045389 is 98354067.

It is a happy number.

It is not a de Polignac number, because 76045389 - 2⁸ = 76045133 is a prime.

It is a super-2 number, since 2×76045389² = 11565802376322642, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 76045389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76045289) 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 15 ways as a sum of consecutive naturals, for example, 37537 + ... + 39510.

It is an arithmetic number, because the mean of its divisors is an integer number (7396608).

Almost surely, 2^76045389 is an apocalyptic number.

It is an amenable number.

76045389 is a deficient number, since it is larger than the sum of its proper divisors (42300339).

76045389 is a wasteful number, since it uses less digits than its factorization.

76045389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77104.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 76045389 is about 8720.4007362047. The cubic root of 76045389 is about 423.6666661164. Note that the first 6 decimals are identical.

The spelling of 76045389 in words is "seventy-six million, forty-five thousand, three hundred eighty-nine".