77740370 has 8 divisors (see below), whose sum is σ = 139932684. Its totient is φ = 31096144.

The previous prime is 77740361. The next prime is 77740393. The reversal of 77740370 is 7304777.

It can be written as a sum of positive squares in 2 ways, for example, as 74011609 + 3728761 = 8603^2 + 1931^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 77740370.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3887009 + ... + 3887028.

Almost surely, 2^77740370 is an apocalyptic number.

77740370 is a deficient number, since it is larger than the sum of its proper divisors (62192314).

77740370 is a wasteful number, since it uses less digits than its factorization.

77740370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7774044.

The product of its (nonzero) digits is 28812, while the sum is 35.

The square root of 77740370 is about 8817.0499601624. The cubic root of 77740370 is about 426.7912769443.

The spelling of 77740370 in words is "seventy-seven million, seven hundred forty thousand, three hundred seventy".