70870761 has 16 divisors (see below), whose sum is σ = 113070720. Its totient is φ = 43612560.

The previous prime is 70870759. The next prime is 70870771. The reversal of 70870761 is 16707807.

It is not a de Polignac number, because 70870761 - 2¹ = 70870759 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70870711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100605 + ... + 101306.

It is an arithmetic number, because the mean of its divisors is an integer number (7066920).

Almost surely, 2^70870761 is an apocalyptic number.

It is an amenable number.

70870761 is a deficient number, since it is larger than the sum of its proper divisors (42199959).

70870761 is a wasteful number, since it uses less digits than its factorization.

70870761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201933 (or 201927 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 36.

The square root of 70870761 is about 8418.4773563870. The cubic root of 70870761 is about 413.8303757956.

It can be divided in two parts, 70870 and 761, that added together give a triangular number (71631 = T₃₇₈).

The spelling of 70870761 in words is "seventy million, eight hundred seventy thousand, seven hundred sixty-one".