77425630 has 16 divisors (see below), whose sum is σ = 142766064. Its totient is φ = 30214720.

The previous prime is 77425603. The next prime is 77425651. The reversal of 77425630 is 3652477.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94012 + ... + 94831.

It is an arithmetic number, because the mean of its divisors is an integer number (8922879).

Almost surely, 2^77425630 is an apocalyptic number.

77425630 is a deficient number, since it is larger than the sum of its proper divisors (65340434).

77425630 is a wasteful number, since it uses less digits than its factorization.

77425630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188891.

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 77425630 is about 8799.1834848468. The cubic root of 77425630 is about 426.2145282270.

The spelling of 77425630 in words is "seventy-seven million, four hundred twenty-five thousand, six hundred thirty".