70405497 has 32 divisors (see below), whose sum is σ = 107049600. Its totient is φ = 45720576.

The previous prime is 70405493. The next prime is 70405513. The reversal of 70405497 is 79450407.

It is a happy number.

70405497 is a `hidden beast` number, since 70 + 40 + 549 + 7 = 666.

It is not a de Polignac number, because 70405497 - 2² = 70405493 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70405493) 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 31 ways as a sum of consecutive naturals, for example, 199273 + ... + 199625.

It is an arithmetic number, because the mean of its divisors is an integer number (3345300).

Almost surely, 2^70405497 is an apocalyptic number.

It is an amenable number.

70405497 is a deficient number, since it is larger than the sum of its proper divisors (36644103).

70405497 is a wasteful number, since it uses less digits than its factorization.

70405497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534 (or 528 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 70405497 is about 8390.7983529578. The cubic root of 70405497 is about 412.9227929555.

The spelling of 70405497 in words is "seventy million, four hundred five thousand, four hundred ninety-seven".