70427629 has 4 divisors (see below), whose sum is σ = 72699520. Its totient is φ = 68155740.

The previous prime is 70427597. The next prime is 70427639. The reversal of 70427629 is 92672407.

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 a cyclic number.

It is not a de Polignac number, because 70427629 - 2⁵ = 70427597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70427639) 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, 1135899 + ... + 1135960.

It is an arithmetic number, because the mean of its divisors is an integer number (18174880).

Almost surely, 2^70427629 is an apocalyptic number.

It is an amenable number.

70427629 is a deficient number, since it is larger than the sum of its proper divisors (2271891).

70427629 is a wasteful number, since it uses less digits than its factorization.

70427629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2271890.

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

The square root of 70427629 is about 8392.1170749698. The cubic root of 70427629 is about 412.9660559118.

The spelling of 70427629 in words is "seventy million, four hundred twenty-seven thousand, six hundred twenty-nine".