70462729 has 4 divisors (see below), whose sum is σ = 71961984. Its totient is φ = 68963476.

The previous prime is 70462709. The next prime is 70462741. The reversal of 70462729 is 92726407.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 70462729 - 2¹¹ = 70460681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70462709) 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 3 ways as a sum of consecutive naturals, for example, 749557 + ... + 749650.

It is an arithmetic number, because the mean of its divisors is an integer number (17990496).

Almost surely, 2^70462729 is an apocalyptic number.

It is an amenable number.

70462729 is a deficient number, since it is larger than the sum of its proper divisors (1499255).

70462729 is a wasteful number, since it uses less digits than its factorization.

70462729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1499254.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 70462729 is about 8394.2080627061. The cubic root of 70462729 is about 413.0346497359.

The spelling of 70462729 in words is "seventy million, four hundred sixty-two thousand, seven hundred twenty-nine".