87949403 has 2 divisors, whose sum is σ = 87949404. Its totient is φ = 87949402.

The previous prime is 87949397. The next prime is 87949409. The reversal of 87949403 is 30494978.

It is a balanced prime because it is at equal distance from previous prime (87949397) and next prime (87949409).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87949403 is a prime.

It is not a weakly prime, because it can be changed into another prime (87949409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43974701 + 43974702.

It is an arithmetic number, because the mean of its divisors is an integer number (43974702).

Almost surely, 2^87949403 is an apocalyptic number.

87949403 is a deficient number, since it is larger than the sum of its proper divisors (1).

87949403 is an equidigital number, since it uses as much as digits as its factorization.

87949403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 87949403 is about 9378.1343027278. The cubic root of 87949403 is about 444.7107542549.

The spelling of 87949403 in words is "eighty-seven million, nine hundred forty-nine thousand, four hundred three".