77046438 has 16 divisors (see below), whose sum is σ = 176106240. Its totient is φ = 22013256.

The previous prime is 77046427. The next prime is 77046443. The reversal of 77046438 is 83464077.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 77046396 and 77046405.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 917178 + ... + 917261.

It is an arithmetic number, because the mean of its divisors is an integer number (11006640).

Almost surely, 2^77046438 is an apocalyptic number.

77046438 is an abundant number, since it is smaller than the sum of its proper divisors (99059802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77046438 is a wasteful number, since it uses less digits than its factorization.

77046438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1834451.

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 77046438 is about 8777.6100391849. The cubic root of 77046438 is about 425.5175940655.

The spelling of 77046438 in words is "seventy-seven million, forty-six thousand, four hundred thirty-eight".