70742471 has 4 divisors (see below), whose sum is σ = 70782000. Its totient is φ = 70702944.

The previous prime is 70742467. The next prime is 70742501. The reversal of 70742471 is 17424707.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70742471 - 2² = 70742467 is a prime.

It is a super-3 number, since 3×70742471³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70742401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16946 + ... + 20703.

It is an arithmetic number, because the mean of its divisors is an integer number (17695500).

Almost surely, 2^70742471 is an apocalyptic number.

70742471 is a deficient number, since it is larger than the sum of its proper divisors (39529).

70742471 is a wasteful number, since it uses less digits than its factorization.

70742471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39528.

The product of its (nonzero) digits is 10976, while the sum is 32.

The square root of 70742471 is about 8410.8543561282. The cubic root of 70742471 is about 413.5805202132.

The spelling of 70742471 in words is "seventy million, seven hundred forty-two thousand, four hundred seventy-one".