70898531 has 16 divisors (see below), whose sum is σ = 79230048. Its totient is φ = 62899200.

The previous prime is 70898507. The next prime is 70898537. The reversal of 70898531 is 13589807.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 70898531 - 2⁶ = 70898467 is a prime.

It is a super-2 number, since 2×70898531² = 10053203395915922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70898537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105011 + ... + 105683.

It is an arithmetic number, because the mean of its divisors is an integer number (4951878).

Almost surely, 2^70898531 is an apocalyptic number.

70898531 is a deficient number, since it is larger than the sum of its proper divisors (8331517).

70898531 is a wasteful number, since it uses less digits than its factorization.

70898531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 70898531 is about 8420.1265429921. The cubic root of 70898531 is about 413.8844205041.

The spelling of 70898531 in words is "seventy million, eight hundred ninety-eight thousand, five hundred thirty-one".