70649493 has 4 divisors (see below), whose sum is σ = 94199328. Its totient is φ = 47099660.

The previous prime is 70649483. The next prime is 70649503. The reversal of 70649493 is 39494607.

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 an interprime number because it is at equal distance from previous prime (70649483) and next prime (70649503).

It is a cyclic number.

It is not a de Polignac number, because 70649493 - 2⁸ = 70649237 is a prime.

It is a super-2 number, since 2×70649493² = 9982701722314098, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70649443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11774913 + ... + 11774918.

It is an arithmetic number, because the mean of its divisors is an integer number (23549832).

Almost surely, 2^70649493 is an apocalyptic number.

It is an amenable number.

70649493 is a deficient number, since it is larger than the sum of its proper divisors (23549835).

70649493 is a wasteful number, since it uses less digits than its factorization.

70649493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23549834.

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 70649493 is about 8405.3252762757. The cubic root of 70649493 is about 413.3992488674.

The spelling of 70649493 in words is "seventy million, six hundred forty-nine thousand, four hundred ninety-three".