70385925 has 24 divisors (see below), whose sum is σ = 116805024. Its totient is φ = 37399360.

The previous prime is 70385897. The next prime is 70385927. The reversal of 70385925 is 52958307.

It is not a de Polignac number, because 70385925 - 2¹³ = 70377733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70385927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20374 + ... + 23576.

It is an arithmetic number, because the mean of its divisors is an integer number (4866876).

Almost surely, 2^70385925 is an apocalyptic number.

70385925 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

70385925 is a deficient number, since it is larger than the sum of its proper divisors (46419099).

70385925 is a wasteful number, since it uses less digits than its factorization.

70385925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3509 (or 3504 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 70385925 is about 8389.6319943130. The cubic root of 70385925 is about 412.8845266541.

The spelling of 70385925 in words is "seventy million, three hundred eighty-five thousand, nine hundred twenty-five".