70680077 has 8 divisors (see below), whose sum is σ = 76289976. Its totient is φ = 65094912.

The previous prime is 70680041. The next prime is 70680091. The reversal of 70680077 is 77008607.

It can be written as a sum of positive squares in 4 ways, for example, as 33396841 + 37283236 = 5779^2 + 6106^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 70680077 - 2⁶ = 70680013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70680007) 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, 8 + ... + 11889.

It is an arithmetic number, because the mean of its divisors is an integer number (9536247).

Almost surely, 2^70680077 is an apocalyptic number.

It is an amenable number.

70680077 is a deficient number, since it is larger than the sum of its proper divisors (5609899).

70680077 is a wasteful number, since it uses less digits than its factorization.

70680077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12367.

The product of its (nonzero) digits is 16464, while the sum is 35.

The square root of 70680077 is about 8407.1444022331. The cubic root of 70680077 is about 413.4588934503.

The spelling of 70680077 in words is "seventy million, six hundred eighty thousand, seventy-seven".