70347428 has 24 divisors (see below), whose sum is σ = 130620672. Its totient is φ = 33035904.

The previous prime is 70347419. The next prime is 70347437. The reversal of 70347428 is 82474307.

It is an interprime number because it is at equal distance from previous prime (70347419) and next prime (70347437).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 48725 + ... + 50147.

It is an arithmetic number, because the mean of its divisors is an integer number (5442528).

Almost surely, 2^70347428 is an apocalyptic number.

It is an amenable number.

70347428 is a deficient number, since it is larger than the sum of its proper divisors (60273244).

70347428 is a wasteful number, since it uses less digits than its factorization.

70347428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2171 (or 2169 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 35.

The square root of 70347428 is about 8387.3373605692. The cubic root of 70347428 is about 412.8092383331.

The spelling of 70347428 in words is "seventy million, three hundred forty-seven thousand, four hundred twenty-eight".