70342661 has 8 divisors (see below), whose sum is σ = 74736120. Its totient is φ = 66080448.

The previous prime is 70342639. The next prime is 70342667. The reversal of 70342661 is 16624307.

It can be written as a sum of positive squares in 4 ways, for example, as 32273761 + 38068900 = 5681^2 + 6170^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70342661 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70342667) 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, 31706 + ... + 33851.

It is an arithmetic number, because the mean of its divisors is an integer number (9342015).

Almost surely, 2^70342661 is an apocalyptic number.

It is an amenable number.

70342661 is a deficient number, since it is larger than the sum of its proper divisors (4393459).

70342661 is a wasteful number, since it uses less digits than its factorization.

70342661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65623.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 70342661 is about 8387.0531773681. The cubic root of 70342661 is about 412.7999136326.

Adding to 70342661 its reverse (16624307), we get a palindrome (86966968).

The spelling of 70342661 in words is "seventy million, three hundred forty-two thousand, six hundred sixty-one".