70742217 has 48 divisors (see below), whose sum is σ = 120680448. Its totient is φ = 36054720.

The previous prime is 70742207. The next prime is 70742251. The reversal of 70742217 is 71224707.

It is not a de Polignac number, because 70742217 - 2⁴ = 70742201 is a prime.

It is a super-2 number, since 2×70742217² = 10008922532150178, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70742207) 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 47 ways as a sum of consecutive naturals, for example, 109698 + ... + 110340.

It is an arithmetic number, because the mean of its divisors is an integer number (2514176).

Almost surely, 2^70742217 is an apocalyptic number.

It is an amenable number.

70742217 is a deficient number, since it is larger than the sum of its proper divisors (49938231).

70742217 is a wasteful number, since it uses less digits than its factorization.

70742217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710 (or 697 counting only the distinct ones).

The product of its (nonzero) digits is 5488, while the sum is 30.

The square root of 70742217 is about 8410.8392565784. The cubic root of 70742217 is about 413.5800252273.

It can be divided in two parts, 707 and 42217, that added together give a palindrome (42924).

The spelling of 70742217 in words is "seventy million, seven hundred forty-two thousand, two hundred seventeen".