70825731 has 8 divisors (see below), whose sum is σ = 97480704. Its totient is φ = 45693960.

The previous prime is 70825721. The next prime is 70825739. The reversal of 70825731 is 13752807.

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

It is not a de Polignac number, because 70825731 - 2⁷ = 70825603 is a prime.

It is a super-2 number, since 2×70825731² = 10032568343368722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 70825692 and 70825701.

It is not an unprimeable number, because it can be changed into a prime (70825739) 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, 380691 + ... + 380876.

It is an arithmetic number, because the mean of its divisors is an integer number (12185088).

Almost surely, 2^70825731 is an apocalyptic number.

70825731 is a deficient number, since it is larger than the sum of its proper divisors (26654973).

70825731 is a wasteful number, since it uses less digits than its factorization.

70825731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761601.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 70825731 is about 8415.8024572824. The cubic root of 70825731 is about 413.7427104468.

The spelling of 70825731 in words is "seventy million, eight hundred twenty-five thousand, seven hundred thirty-one".