70429531 has 8 divisors (see below), whose sum is σ = 71036928. Its totient is φ = 69825000.

The previous prime is 70429481. The next prime is 70429553. The reversal of 70429531 is 13592407.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70429531 - 2¹⁵ = 70396763 is a prime.

It is a super-2 number, since 2×70429531² = 9920637673759922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70429493 and 70429502.

It is not an unprimeable number, because it can be changed into a prime (70429631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93406 + ... + 94156.

It is an arithmetic number, because the mean of its divisors is an integer number (8879616).

Almost surely, 2^70429531 is an apocalyptic number.

70429531 is a deficient number, since it is larger than the sum of its proper divisors (607397).

70429531 is a wasteful number, since it uses less digits than its factorization.

70429531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1433.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 70429531 is about 8392.2303948355. The cubic root of 70429531 is about 412.9697734602.

The spelling of 70429531 in words is "seventy million, four hundred twenty-nine thousand, five hundred thirty-one".