70766861 has 16 divisors (see below), whose sum is σ = 79627968. Its totient is φ = 62332800.

The previous prime is 70766851. The next prime is 70766867. The reversal of 70766861 is 16866707.

It is a cyclic number.

It is not a de Polignac number, because 70766861 - 2¹⁰ = 70765837 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70766867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77570 + ... + 78476.

It is an arithmetic number, because the mean of its divisors is an integer number (4976748).

Almost surely, 2^70766861 is an apocalyptic number.

It is an amenable number.

70766861 is a deficient number, since it is larger than the sum of its proper divisors (8861107).

70766861 is a wasteful number, since it uses less digits than its factorization.

70766861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 70766861 is about 8412.3041433367. The cubic root of 70766861 is about 413.6280450344.

The spelling of 70766861 in words is "seventy million, seven hundred sixty-six thousand, eight hundred sixty-one".