70026661 has 8 divisors (see below), whose sum is σ = 72667584. Its totient is φ = 67431840.

The previous prime is 70026653. The next prime is 70026667. The reversal of 70026661 is 16662007.

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 70026661 - 2³ = 70026653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70026667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8416 + ... + 14521.

It is an arithmetic number, because the mean of its divisors is an integer number (9083448).

Almost surely, 2^70026661 is an apocalyptic number.

70026661 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

It is an amenable number.

70026661 is a deficient number, since it is larger than the sum of its proper divisors (2640923).

70026661 is a wasteful number, since it uses less digits than its factorization.

70026661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23051.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 70026661 is about 8368.1934131567. The cubic root of 70026661 is about 412.1808460002.

Adding to 70026661 its reverse (16662007), we get a palindrome (86688668).

The spelling of 70026661 in words is "seventy million, twenty-six thousand, six hundred sixty-one".