70239398 has 4 divisors (see below), whose sum is σ = 105359100. Its totient is φ = 35119698.

The previous prime is 70239361. The next prime is 70239413. The reversal of 70239398 is 89393207.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 17559848 + ... + 17559851.

It is an arithmetic number, because the mean of its divisors is an integer number (26339775).

Almost surely, 2^70239398 is an apocalyptic number.

70239398 is a deficient number, since it is larger than the sum of its proper divisors (35119702).

70239398 is a wasteful number, since it uses less digits than its factorization.

70239398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35119701.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 70239398 is about 8380.8948209603. The cubic root of 70239398 is about 412.5978180020.

The spelling of 70239398 in words is "seventy million, two hundred thirty-nine thousand, three hundred ninety-eight".