77425307 has 4 divisors (see below), whose sum is σ = 78149016. Its totient is φ = 76701600.

The previous prime is 77425279. The next prime is 77425351. The reversal of 77425307 is 70352477.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 77425307 - 2¹⁰ = 77424283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77425357) 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, 361694 + ... + 361907.

It is an arithmetic number, because the mean of its divisors is an integer number (19537254).

Almost surely, 2^77425307 is an apocalyptic number.

77425307 is a deficient number, since it is larger than the sum of its proper divisors (723709).

77425307 is a wasteful number, since it uses less digits than its factorization.

77425307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723708.

The product of its (nonzero) digits is 41160, while the sum is 35.

The square root of 77425307 is about 8799.1651308519. The cubic root of 77425307 is about 426.2139355400.

The spelling of 77425307 in words is "seventy-seven million, four hundred twenty-five thousand, three hundred seven".