70838537 has 16 divisors (see below), whose sum is σ = 88553472. Its totient is φ = 55051920.

The previous prime is 70838491. The next prime is 70838549. The reversal of 70838537 is 73583807.

It is not a de Polignac number, because 70838537 - 2¹⁰ = 70837513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70838494 and 70838503.

It is not an unprimeable number, because it can be changed into a prime (70838237) 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 15 ways as a sum of consecutive naturals, for example, 34658 + ... + 36644.

It is an arithmetic number, because the mean of its divisors is an integer number (5534592).

Almost surely, 2^70838537 is an apocalyptic number.

70838537 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

It is an amenable number.

70838537 is a deficient number, since it is larger than the sum of its proper divisors (17714935).

70838537 is a wasteful number, since it uses less digits than its factorization.

70838537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2468.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 70838537 is about 8416.5632534901. The cubic root of 70838537 is about 413.7676452164.

The spelling of 70838537 in words is "seventy million, eight hundred thirty-eight thousand, five hundred thirty-seven".