70207641 has 75 divisors (see below), whose sum is σ = 129128901. Its totient is φ = 38007144.

The previous prime is 70207609. The next prime is 70207651. The reversal of 70207641 is 14670207.

The square root of 70207641 is 8379.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 70207641 - 2⁵ = 70207609 is a prime.

It is a super-2 number, since 2×70207641² = 9858225709569762, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (70207651) by changing a digit.

It is a polite number, since it can be written in 74 ways as a sum of consecutive naturals, for example, 3695130 + ... + 3695148.

Almost surely, 2^70207641 is an apocalyptic number.

70207641 is the 8379-th square number.

70207641 is the 4190-th centered octagonal number.

It is an amenable number.

70207641 is a deficient number, since it is larger than the sum of its proper divisors (58921260).

70207641 is an frugal number, since it uses more digits than its factorization.

70207641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78 (or 29 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The cubic root of 70207641 is about 412.5356266750.

Adding to 70207641 its reverse (14670207), we get a palindrome (84877848).

The spelling of 70207641 in words is "seventy million, two hundred seven thousand, six hundred forty-one".