77625340 has 24 divisors (see below), whose sum is σ = 175553280. Its totient is φ = 28661568.

The previous prime is 77625313. The next prime is 77625343. The reversal of 77625340 is 4352677.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 77625296 and 77625305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77625343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149020 + ... + 149539.

It is an arithmetic number, because the mean of its divisors is an integer number (7314720).

Almost surely, 2^77625340 is an apocalyptic number.

It is an amenable number.

77625340 is an abundant number, since it is smaller than the sum of its proper divisors (97927940).

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

77625340 is a wasteful number, since it uses less digits than its factorization.

77625340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298581 (or 298579 counting only the distinct ones).

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

The square root of 77625340 is about 8810.5243884800. The cubic root of 77625340 is about 426.5806697883.

The spelling of 77625340 in words is "seventy-seven million, six hundred twenty-five thousand, three hundred forty".