70610409 has 9 divisors (see below), whose sum is σ = 102029239. Its totient is φ = 47056800.

The previous prime is 70610381. The next prime is 70610443. The reversal of 70610409 is 90401607.

The square root of 70610409 is 8403.

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

70610409 is a `hidden beast` number, since 7 + 0 + 610 + 40 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 36036009 + 34574400 = 6003^2 + 5880^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 70610409 - 2⁵ = 70610377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70610209) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 23809 + ... + 26609.

Almost surely, 2^70610409 is an apocalyptic number.

70610409 is the 8403-rd square number.

70610409 is the 4202-nd centered octagonal number.

It is an amenable number.

70610409 is a deficient number, since it is larger than the sum of its proper divisors (31418830).

70610409 is an frugal number, since it uses more digits than its factorization.

70610409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5608 (or 2804 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The cubic root of 70610409 is about 413.3230026179.

The spelling of 70610409 in words is "seventy million, six hundred ten thousand, four hundred nine".