70876561 has 8 divisors (see below), whose sum is σ = 81124544. Its totient is φ = 60659280.

The previous prime is 70876549. The next prime is 70876567. The reversal of 70876561 is 16567807.

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 70876561 - 2¹⁵ = 70843793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70876567) 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, 2490 + ... + 12163.

It is an arithmetic number, because the mean of its divisors is an integer number (10140568).

Almost surely, 2^70876561 is an apocalyptic number.

It is an amenable number.

70876561 is a deficient number, since it is larger than the sum of its proper divisors (10247983).

70876561 is a wasteful number, since it uses less digits than its factorization.

70876561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15351.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 70876561 is about 8418.8218296861. The cubic root of 70876561 is about 413.8416646575.

The spelling of 70876561 in words is "seventy million, eight hundred seventy-six thousand, five hundred sixty-one".