77400074 has 8 divisors (see below), whose sum is σ = 116363520. Its totient is φ = 38612236.

The previous prime is 77400019. The next prime is 77400077. The reversal of 77400074 is 47000477.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (77400077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42794 + ... + 44565.

It is an arithmetic number, because the mean of its divisors is an integer number (14545440).

Almost surely, 2^77400074 is an apocalyptic number.

77400074 is a deficient number, since it is larger than the sum of its proper divisors (38963446).

77400074 is a wasteful number, since it uses less digits than its factorization.

77400074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87804.

The product of its (nonzero) digits is 5488, while the sum is 29.

The square root of 77400074 is about 8797.7311847999. The cubic root of 77400074 is about 426.1676292991.

The spelling of 77400074 in words is "seventy-seven million, four hundred thousand, seventy-four".