70350005 has 30 divisors (see below), whose sum is σ = 95953590. Its totient is φ = 49513200.

The previous prime is 70350001. The next prime is 70350011. The reversal of 70350005 is 50005307.

It can be written as a sum of positive squares in only one way, i.e., 56280004 + 14070001 = 7502^2 + 3751^2 .

It is not a de Polignac number, because 70350005 - 2² = 70350001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70350001) by changing a digit.

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 in 29 ways as a sum of consecutive naturals, for example, 2269340 + ... + 2269370.

It is an arithmetic number, because the mean of its divisors is an integer number (3198453).

Almost surely, 2^70350005 is an apocalyptic number.

It is an amenable number.

70350005 is a deficient number, since it is larger than the sum of its proper divisors (25603585).

70350005 is an frugal number, since it uses more digits than its factorization.

70350005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 525, while the sum is 20.

The square root of 70350005 is about 8387.4909836017. The cubic root of 70350005 is about 412.8142790121.

Multiplying 70350005 by its sum of digits (20), we get a square (1407000100 = 37510²).

The spelling of 70350005 in words is "seventy million, three hundred fifty thousand, five".