70229857 has 4 divisors (see below), whose sum is σ = 70782976. Its totient is φ = 69676740.

The previous prime is 70229813. The next prime is 70229867. The reversal of 70229857 is 75892207.

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 70229857 - 2¹⁹ = 69705569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70229807) 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, 276369 + ... + 276622.

It is an arithmetic number, because the mean of its divisors is an integer number (17695744).

Almost surely, 2^70229857 is an apocalyptic number.

It is an amenable number.

70229857 is a deficient number, since it is larger than the sum of its proper divisors (553119).

70229857 is a wasteful number, since it uses less digits than its factorization.

70229857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553118.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 70229857 is about 8380.3255903336. The cubic root of 70229857 is about 412.5791353531.

The spelling of 70229857 in words is "seventy million, two hundred twenty-nine thousand, eight hundred fifty-seven".