70942557 has 32 divisors (see below), whose sum is σ = 113541120. Its totient is φ = 38522880.

The previous prime is 70942517. The next prime is 70942559. The reversal of 70942557 is 75524907.

It is not a de Polignac number, because 70942557 - 2⁶ = 70942493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70942559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91869 + ... + 92637.

It is an arithmetic number, because the mean of its divisors is an integer number (3548160).

Almost surely, 2^70942557 is an apocalyptic number.

It is an amenable number.

70942557 is a deficient number, since it is larger than the sum of its proper divisors (42598563).

70942557 is a wasteful number, since it uses less digits than its factorization.

70942557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993.

The product of its (nonzero) digits is 88200, while the sum is 39.

The square root of 70942557 is about 8422.7404685174. The cubic root of 70942557 is about 413.9700729843.

The spelling of 70942557 in words is "seventy million, nine hundred forty-two thousand, five hundred fifty-seven".