70346661 has 32 divisors (see below), whose sum is σ = 117531648. Its totient is φ = 36359040.

The previous prime is 70346659. The next prime is 70346687. The reversal of 70346661 is 16664307.

It is not a de Polignac number, because 70346661 - 2¹ = 70346659 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70346641) 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 31 ways as a sum of consecutive naturals, for example, 53170 + ... + 54476.

It is an arithmetic number, because the mean of its divisors is an integer number (3672864).

Almost surely, 2^70346661 is an apocalyptic number.

It is an amenable number.

70346661 is a deficient number, since it is larger than the sum of its proper divisors (47184987).

70346661 is a wasteful number, since it uses less digits than its factorization.

70346661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 70346661 is about 8387.2916367562. The cubic root of 70346661 is about 412.8077380374.

It can be divided in two parts, 7034 and 6661, that added together give a triangular number (13695 = T₁₆₅).

The spelling of 70346661 in words is "seventy million, three hundred forty-six thousand, six hundred sixty-one".